Shorts and Knickers

GTO marks the pinnacle of the Total Comfort MILLE GT line - spiritual successor to the iconic CENTO and Campionissimo Bib Shorts. It features the plushest, most responsive and breathable ASSOS insert to date, wrapped in our new frictionless, wrinkle-free paneling. The GTO has two leg lengths: STANDARD and LONG (+3cm vs standard). BEHIND THE PRODUCT With large-muscle support, friction, and excessive pressure remaining critical issues on long-duration rides, GTO destroys conventional bib short construction formulas. We reversed stitch lines and radically reshaped the insert to eliminate friction and genital pressure, while providing matchless muscle support with tapered, wrinkle-free leg panels that mirror your personal physique.

The lightest, most breathable ASSOS bib shorts to date. Engineered specifically for full-gas efforts in the hottest conditions—indoors and out—the 120-gram SUPERLÉGER is built on our S9 platform using hyperlight textiles for unmatched stability and boosted ventilation. BEHIND THE PRODUCT To not only reduce weight, but also increase rider comfort and support during the hottest racing days and flat-out indoor training sessions. We reduced the number of seams and replaced current panels’ textiles with hyperlight, more breathable materials to further reduce friction and keep the leg muscles cooler and fresher, for longer durations.

The Premio Bibshort has been engineered to provide the ultimate in long-distance comfort and to be your favorite bibshort ever. That's a big claim, but there's a lot of development in this short to back it up. So let's take a tour of the short. The first thing you might notice is what's missing: the seams and multiple panels. We engineered a new fabric that changes depending on the needs over various parts of the body. The lower leg has a raw-cut leg ending and rubberized yarns to guarantee a flat grip to keep the leg in place. The fabric becomes lighter in the thigh, while the four-way stretch provides just the right amount of muscle support. In the pelvis area, the compression and support increase to keep the seat pad and everything else in place, and the fabric gets thicker to avoid any embarrassing transparency issues. With this magical fabric we don't need to stitch separate panels together, which ensures more comfort and a better fit, as well as a sleek, sophisticated look. The premium fabrics extend into the bib straps. The perforated back keeps you cool and the edge is bonded so you don't feel the thickness of a stitched edge. The elastic straps have just enough modulus (return) to hold your shorts securely in place without cutting in to your shoulders. The seat pad is our top-of-the-line Progetto X2 Air Seamless pad. It's actually two separate components: a soft, stretchy Skin Care Layer next to your skin, which has the sole purpose of preventing any rubbing on your skin, and, under that, the Cushioning Layer, which features two separate densities of foam along with breathable perforated gel inserts under the ischia bones and perineum. We've carried the less-is-more theme into the design, with minimalist laser-etched logos and subtle finishing. It looks as premium as it feels. You can tell that every component, every stitch, every detail has been obsessed over. You'll not find a better bibshort. - The premium all-conditions short - Gradient stretch woven fabric for the right support in the right place - Woven fabric weighs 30% less than comparable knit fabric - Perforated back bib panel with lie flat bib straps that don't bind at shoulders - Integrated gripper elastic at leg ending holds short in place without need for extra silicone grippers - Laser-etched logos with RossoCorsa at center back and black scorpion shadow logos at lower legs - Progetto X2 Air Seamless seat pad

The next evolution in total comfort for winter bib tights, refined with increased insulation and a deeper, plusher insert. The new RX EVO Plus textile is the most insulating of the RX Evo family. The added insulating qualities of RX EVO Plus textile handle colder conditions than the previous model, reducing the gap to the ULTRAZ counterpart without risking overheating in all but winter's worst weather. The new material breathes well to maintain a dry, warm microclimate, and the new model is also updated with our MILLE GT C2 insert, which adds 2mm of plush comfort for long rides maintaining form or building base miles for the coming season. - 76%PA 24%EA

Lightly insulated knickers for cool conditions and long-distance riding, with extended knee coverage and stormproof textiles. Updated with features to enhance stability, reduce seams, and improve support. We redesigned the pre-shaped panels to reduce seam count, and we also shed grams without sacrificing the light compression and long-distance comfort MILLE embodies. The Knickers are updated with our race-inspired X-Frame bib design, which stabilizes the insert and body panels throughout the pedal motion and while cornering. The new model is also updated with our MILLE GT C2 insert, which adds 2mm of plush comfort for long rides maintaining form or building base miles for the coming season. - 86%PA 14%EA

Crafted with long ride comfort at the top of the list, we paired our all new Levitate PRO Chamois with luxurious Italian PRO Transfer fabric to create a bib short that you will choose for your most important rides. Just seven carefully engineered panels are used to minimize seaming for a perfect contour to your body. Wide, laser-cut bib straps provide a barely-there, yet supportive fit. And raw edge hems create a smooth transition from short to skin for a sleek, high-performance look and feel, with a printed silicone gripper to hold it securely in place even during hard efforts. FEATURES - Pedal to Zero™: Going by bike 16mi / 26km offsets the climate impact of this garment - Luxurious Italian PRO Transfer fabric balances compression for ultimate comfort - New Men's Levitate™ PRO Chamois pad with triple-density design delivers unmatched support - Seven-panel design minimizes seams and optimizes body-contouring fit - Laser-cut raw edge leg hem construction for seamless transition to skin - BioViz® reflective elements for low-light visibility - 10.5" inseam

GTS marks the introduction of the second generation of MILLE—an all-new bib short that builds on the iconic GT shorts’ Total Comfort formula with its plush double-layer insert and a fatigue-reducing textile. Assos engineered it for committed riders looking for added comfort during training to everyday riders seeking maximum long-distance support.

Innovative evolution The Free Aero RC Bibshort is our top race short, which also means that it's insanely comfortable even if you never pin on a number. It's fair to say that we've been working on this short for the past 15 years. That's how long it's been since the original free aero race bibshort was first introduced, initially as our top-of-the-line race short. Since then it has won three Tours de France, three Gri d'Italia, one Vuelta, and San Remo, but it also became the best-selling product in the history of Castelli because, simply put, this is the short that does everything well. The concept is quite simple: start with the best pad we know how to make, surround it with a supportive short with good muscle compression, and then remove everything else that's not absolutely necessary. You feel free thanks to the reduced number of panels and the reduced number of seams. In fact, the short portion has just 5 panels compared to 10 in the previous generation. You feel free because of further refinements to the Progetto X2 air seamless seat pad. The two densities of foam plus the gel pads provide progressive damping, while the separate skincare layer is soft and stretchy to move with your skin. You feel free thanks to the most minimal bibs you've ever seen in a short, including open-weave straps for maximum airflow. But we reinforced the yoke so the straps stay in place and made the mesh back narrow for coverage that is minimal yet just enough to hold the shorts in place. And the bib elegantly frames a convenient pocket at the center back. You feel free because this is the first high-end short that doesn't need any sort of gripper or elastic at the end of the leg to keep the leg in place. Getting this right meant 28 prototypes and our most extensive test program ever, and it results in the most comfortable leg ending we've ever made. The Forza 2 fabric has 32% lycra with a high modulus for exceptional muscle support and just the right amount of compression. There's reflective piping on the back. And all logos are either stitched or embossed for durability. - High-compression 215g Forza 2 fabric with 32% lycra content provides exceptional muscle support and compression - Progetto X2 air seamless seat pad is soft against the skin but well padded for long-distance comfort - Minimalist bib straps allow maximum airflow, while a reinforced yoke keeps the straps flat over the shoulders - Rear mesh pocket - 5-panel construction for reduced seams and less chafing - Sublimation-printed graphic and logos that will never peel, crack, or fade - Reflective piping on back of legs - Soft waistband with raw-cut edge panels for extra stretch and comfort - Raw-cut leg ending engineered to stay put without silicone grippers

The entry into our Race Series, EQUIPE R combines technology from the EQUIPE RS system with simplified, everyday utility. The EQUIPE R is built with our signature A-Lock Engineering construction that adapts technologies from the WorldTour-proven EQUIPE RS. It maintains racing it stability with a muscle-wrapping butterfly panel and the new Type.443 textile, which compresses and breathes like the EQUIPE RS, but with a deeper black color. Monofilament elastic in the bib straps reduces weight and dries faster than dual-layer models, and the shorts are equipped with our core racing insert. - 80%PA 20%EA

Innovative evolution The free aero RC bibshort is our top race short, which also means that it's insanely comfortable even if you never pin on a number. It's fair to say that we've been working on this short for the past 15 years. That's how long it's been since the original free aero race bibshort was first introduced, initially as our top-of-the-line race short. Since then it has won three Tours de France, three Giri d'Italia, one Vuelta and San Remo, but it also became the best-selling product in the history of Castelli because simply put, this is the short that does everything well. The concept is quite simple: start with the best pad we know how to make, surround it with a supportive short with good muscle compression, and then remove everything else that's not absolutely necessary. You feel free thanks to the reduced number of panels and the reduced number of seams. In fact, the short portion has just 5 panels compared to 10 in the previous generation. You feel free because of further refinements to the Progetto X2 air seamless seat pad. The two densities of foam plus the gel pads provide progressive damping, while the separate skincare layer is soft and stretchy to move with your skin. You feel free thanks to the most minimal bibs you've ever seen in a short, including open-weave straps for maximum airflow. But we reinforced the yoke so the straps stay in place and made the mesh back narrow for coverage that is minimal yet just enough to hold the shorts in place. And the bib elegantly frames a convenient pocket at the center back. You feel free because this is the first high-end short that doesn't need any sort of gripper or elastic at the end of the leg to keep the leg in place. Getting this right meant 28 prototypes and our most extensive test program ever, and it results in the most comfortable leg ending we've ever made. The Forza 2 fabric has 32% lycra with a high modulus for exceptional muscle support and just the right amount of compression. There's reflective piping on the back. And all logos are either stitched or embossed for durability. - High-compression 215g Forza 2 fabric with 32% lycra content provides exceptional muscle support and compression - Progetto x2 air seamless seat pad is soft against the skin but well padded for long-distance comfort - Minimalist bib straps allow maximum airflow, while a reinforced yoke keeps the straps flat over the shoulders - Rear mesh pocket - 5-panel construction for reduced seams and less chafing

The perfect apparel for the perfect ride, that's what our Prime Series apparel is all about. The best fabrics, constructions, and technologies go into these pieces, and the Men's Prime Bib Shorts are no exception. Starting with the uppers, the open suspender design keeps the bibs right where you want them, without constricting any upper body movements. The suspender fabric is also extremely soft and plush, eliminating any shoulder discomfort or irritation, yet we've still built in a HookUp magnetic bib connection making nature breaks much easier. The pre-molded, triple-density foam Body Geometry Contour 3D Chamois is contoured to perfectly match the curvature of your body, all while being soft and supportive in all the right places. With the Prime Bib Shorts, you're sure to embrace the "chamois time is training time" motto as they're so comfortable, you won't want to take them off. - Open suspender construction keeps the bibs in place without constricting the upper body. - Stretchy elastic suspenders are extremely plush and soft against the skin. - Silicone-infused fabric cuff provides a gentle, secure hold on the legs to ensure a shift-free fit. - Fabric Content: MAIN: Knit 46% Polyamide, 38% Polyester, 16% Elastane - UPPER: 90% Polyester, 10% Elastane

The definitive bib shorts for competitive, committed cyclists from the company that originally defined the racing shorts genre—and continues to lead in driving it forward. The shorts combine textiles and technology in an interwoven network of wrapping compression, silky comfort, and tensile pre-load to keep everything from the leg panels to the insert securely in place.

Crafted with long ride comfort at the top of the list, we paired our all new Levitate PRO Chamois with luxurious Italian PRO Transfer fabric to create a premium short that you will choose for your most important rides. Just seven carefully engineered panels are used to minimize seaming for a perfect contour to your body. And raw edge hems create a smooth transition from short to skin for a sleek, high-performance look and feel, while a printed silicone gripper holds them securely in place even during hard efforts. FEATURES - Pedal to Zero™: Going by bike 16mi / 25km offsets the climate impact of this garment - Luxurious Italian PRO Transfer fabric provides balanced compression for ultimate comfort - New Men's Levitate™ PRO Chamois pad with triple-density design delivers unmatched support - Wide waistband provides support without feeling constrictive - Seven-panel design minimizes seams and maximizes body-contouring fit - Laser-cut raw edge leg hem construction for seamless transition to skin - BioViz® reflective elements for low-light visibility - 10.5" inseam

The next generation in committed riders' bib shorts of choice, defined by its frictionless waist, refined air-cooling insert, and muscle-wrapping textile. We took this generational redesign as an opportunity to make the MILLE GT better at the things we loved about its predecessor, including our premium X-frame suspension carriage, a refined comfort waist fit, and a reduction in seams and weight (28% and 5g, respectively). The insert also got some attention, inheriting the increased ventilation of our GTS/GTO models and receiving 3mm of additional cushioning. We also updated the Odor Control Top Sheet Tex to the Sugar Blue colorway. - 80%PA 20%EA

A new bib short platform for committed daily riding, whether that’s dedicated training regimens, the weekly crit series, or weekend centuries.

The best materials, combined in a skillful manner to ensure the essence of competitive performance. F-THRONE THE BEST MATERIALS TO ENSURE THE ESSENCE OF COMPETITIVE PERFORMANCE 3-PAD LAYERS 1st LAYER (in contact with the skin) Microfiber fabric with antibacterial and hydrophilic qualities 2nd LAYER Soft and elastic foam, 3mm thick with 3mm holes, density 65 kg/m3 3rd LAYER 10mm of “filter” foam, density 100 kg / m3 UPF 50+ UV PROTECTION The high density of the material used makes the entire jersey protective against UV rays. MADE IN ITALY The entire production process takes place in Italy and is managed by a skilled team of craftsmen.

The main story of this short is the use of Castelli's renowned top-of-the-line Progetto X2 Air Seamless seat pad in an otherwise traditional short, but in fact every little detail has been obsessed over to ensure your comfort on your next long endurance ride. A great pad is useless without great fit. The seams are placed around the hip area to create a perfect shape on the bike. The Endurance Evolution fabric has a soft hand while providing good compression and excellent moisture management. And it's all held in place with the amazingly comfortable GIRO3 leg gripper. This short offers exceptional value and is ready to deliver lasting comfort on your longest rides.

The main story of this short is the use of our renowned top-of-the-line Progetto X2 Air Seamless seat pad in an otherwise traditional short, but in fact every little detail has been obsessed over to ensure your comfort on your next long endurance ride. A great pad is useless without great fit. The seams are placed around the hip area to create a perfect shape on the bike. The Endurance Evolution fabric has a soft hand while providing good compression and excellent moisture management. And it's all held in place with the amazingly comfortable GIRO3 leg gripper. This short offers exceptional value and is ready to deliver lasting comfort on your longest rides. - Endurance Evolution fabric provides optimum muscle support and feels drier in nearly all conditions - Anatomic cut for perfect on-bike fit - Mesh bib straps and back to keep you cooler - Progetto X2 Air Seamless seat pad for even greater comfort and improved airflow - GIRO3 leg grippers lie flat

The main story of this short is the use of our renowned top-of-the-line progetto x2 air donna seamless seat pad in a mostly traditional short, but in fact every little detail has been obsessed over to ensure your comfort on your next long endurance ride. A great pad is useless without great fit. The seams are placed around the hip area to create a perfect shape on the bike. The endurance evolution fabric has a soft hand while providing good compression and excellent moisture management. And it's all held in place with the amazingly comfortable giro3 leg gripper. On your long endurance rides you'll especially appreciate Castelli's drop-tail bib construction. The wider bib straps are free-floating so you can cross them in front or back. They pull tight enough to keep your shorts in place, but when the need arises they stretch long enough that you can take a bathroom break without having to remove your jersey and bibs. This short offers exceptional value and is ready to deliver lasting comfort on your longest rides. - Endurance evolution fabric provides optimum muscle support and feels drier in nearly all conditions - Anatomic cut for perfect on-bike fit - Bib straps can cross in front or back and are extra elastic, allowing short to be pulled down for pee stops without removing bibs - Women's-specific progetto x2 air donna seamless seat pad for even greater comfort and improved airflow - Giro3 leg grippers lie flat

We’ve amplified the performance of the iconic Attack range with premium features that make a big difference during hot weather riding. Constructed from a lightweight, breathable 4-way stretch fabric, these bibs were made for high output efforts. Our new multi-density Levitate™ Plus chamois provides fine-tuned support hours in, so you can chase big objectives in comfort. Sleek detailing like raw-edge bib uppers, laser cut leg openings with silicone-printed grippers, and perforated venting on the lower back give these bibs an edge to take your riding to the next level. FEATURES -Pedal to Zero: Going by bike 18.13mi offsets the climate impact of this garment -New multi-density Levitate™ Plus Chamois pad delivers unmatched comfort -Laser cut bib straps for superior next-to-skin comfort -BioViz® reflective elements for low light visibility -Made from recycled materials -10.5” inseam

Developed with Fabian Cancellara for endurance road cycling with maximum support and ultimate comfort. Built for the long haul, technologies like low force elastic and flatlock seams ensure this short stays in place no matter how long you ride. - Inseam length 23cm / 9-inches - EXPERT LONG DISTANCE seat insert with GORE WINDSTOPPER Cup - Developed with Fabian Cancellara - Dense knit construction creates ultra soft next to skin feel to reduce chafing opaque finish - Central torso architecture keeps chamois in place - Wide and flat bibs with highly breathable material keeps short in place - Ultra-fine gauge, super stretch, durable performance with abrasion resistance - Three-point chamois anchoring system means you will never have to readjust your short while riding - Silicone leg grippers create snug fit at thigh without restricting movement - Reflective details on all sides for 360-degree visibility - Radio pocket on rear of bib - Opaque finish fabric is ultra wicking and fast drying GORE WINDSTOPPER Cup Technology: highly breathable, preformed windproof front for optimum comfort - Flatlock seams all around to create maximum comfort

A bib-free training and endurance cycling short that's at home on the road or aboard the indoor trainer. Bibs aren't for everyone, but their absence compounds the difficulty of dialing the perfect ride-tuned fit. The bib-free Zero-Pressure waist embodies our C2 AEPD click-fit ethos with a secure hold on the sides and back, and a panel insert on the front stretches to accommodate aggressive positioning on the bike and deep breathing during hard efforts. The updated insert inherited increased ventilation from our premium models, and 3mm of additional thickness increase long-ride comfort. - 80%PA 20%EA

Equally at home on tarmac or gravel, the Unlimited Cargo Bibshort knows no limits. This four-pocket short is ready for your next adventure. - Made for fast riding on unlimited terrain - Affinity Pro Lycra® fabric on inside of leg for outstanding stretch and rebound - 2 mesh rear pockets built into mesh bib straps - 2 cargo-style side pockets with flap over top to keep stuff from falling out - KISS Air2 seat pad for long-distance comfort - GIRO4 leg grippers

Our advanced lumen bib shorts effortlessly keep you comfortable with details that matter. Utilizing super light mesh fabric for superior cooling and comfort along with thoughtful ergonomic design for perfect riding position and fit the ADV Lumen Endur Bib Shorts can handle your most intense rides. An infinity C2 pad provides exceptional comfort while silicone elastic at leg endings keep everything in place. - Ergonomic bib construction with mesh super light fabric for active cooling and comfort - Ergonomic design for perfect riding position and fit - Reflective print for enhanced visibility - Silicone elastic at leg ending keeps shorts in place - Made of recycled polyamide fabric for reduced environmental impact - Infinity C2 pad for maximum comfort FIT: Athletic: FABRIC: Lower body: 78% Recycled polyamide, 22% Elastane, Upper Back Body: 95% Polyester, 5% Elastane, Shoulder Straps: 81% Polyester, 19% Elastane *As a Swedish brand our products can fit long and lean. Sorry, but some say it is what makes us fast! So, if your normal fit is typically between sizes we suggest sizing up.

Craft Advanced bib shorts offering excellent body control and great moisture transport. Recycled polyamide, C2 pad, reflective print and Mesh Superlight bib construction for active cooling. Riding-position fit. - Ergonomic and smooth bib construction with Mesh Superlight fabric for active cooling and comfort - Silicone leg ending elastic that keeps the bib shorts in place - Recycled polyamide fabric - Reflective print details - Infinity C2 Pad Women

Lightweight and packable wet weather pant with cycling-specific cut, "guaranteed to keep you dry." Wind and rain protection yet breathable to keep you dry on the inside, even when pedaling hard. For those who want to ride, whatever the weather. - 2.5 layers: less material, less weight - Active fit - Back zip pocket doubles as a stow-away pocket - Contemporary look - Drawcord at waistband to adjust fit - GORE-TEX PACLITE Plus Product: extremely breathable, ultralight and packable while durably waterproof, windproof and robust - Adjustable leg width with velcro fastening for chain protection - Pre-shaped knees - Reflective details - Wear-resistant seat reinforcement - SHELL 1 FACE 100% Polyester; SHELL 2 FACE 100% Polyamide

Bib-free shorts engineered for utility and all-day comfort. Built for base miles and endurance epics, whether they’re on the road or the indoor trainer.

The Thrill of Competition We made this short to incorporate as much technology as possible from our top-of-the-line pro-level race shorts at a more accessible price. And although it's certainly capable of weekend racing, it's also a great comfort performance short even if you never pin on a number. The main Vortex textured fabric and the Giro4 leg gripper come straight from our top Free Aero Race 4 Bibshort, while the KISS Air2 seat pad has most of the comfort of our top seat pad but represents maximum value. The intangible part that you'll appreciate most is our knack for building in perfect fit, thanks to the Castelli pattern engineering team. This is the short that brings the best of Castelli's know-how in building comfort performance shorts into an accessible product in your cycling wardrobe. - KISS Air2 seat pad for all-day comfort - Affinity Pro Lycra fabric on inside of leg for outstanding stretch and rebound - Vortex BLC textured fabric on legs for better aerodynamics - Giro4 leg gripper with raw edge for comfort and silicone stripes for grip - Flat-lock stitching - Reflective detailing on back - Mesh straps for comfort and breathability - 15°-35°C / 59°-95°F - Weight: 173g

The main story of this short is the use of our renowned top-of-the-line Progetto X2 Air Seamless seat pad in an otherwise traditional short, but in fact every little detail has been obsessed over to ensure your comfort on your next long endurance ride. A great pad is useless without great fit. The seams are placed around the hip area to create a perfect shape on the bike. The Endurance Evolution fabric has a soft hand while providing good compression and excellent moisture management. And it's all held in place with the amazingly comfortable GIRO3 leg gripper. This short offers exceptional value and is ready to deliver lasting comfort on your longest rides. Endurance-level comfort for every ride with Castelli's most comfortable seat pad. - Endurance Evolution fabric provides optimum muscle support and feels drier in nearly all conditions - Anatomic cut for perfect on-bike fit - Progetto X2 Air Seamless seat pad for even greater comfort and improved airflow - GIRO3 leg grippers lie flat - Weight: 186g

The main story of this short is the use of our renowned top-of-the-line progetto x2 air donna seamless seat pad in a mostly traditional short, but in fact every little detail has been obsessed over to ensure your comfort on your next long endurance ride. A great pad is useless without great fit. The seams are placed around the hip area to create a perfect shape on the bike. The endurance evolution fabric has a soft hand while providing good compression and excellent moisture management. And it's all held in place with the amazingly comfortable giro3 leg gripper. On your long endurance rides you'll especially appreciate castelli's drop-tail bib construction. The wider bib straps are free floating so you can cross them in front or back. They pull tight enough to keep your shorts in place, but when the need arises they stretch long enough that you can take a bathroom break without having to remove your jersey and bibs. This short offers exceptional value and is ready to deliver lasting comfort on your longest rides. - Endurance evolution fabric provides optimum muscle support and feels drier in nearly all conditions - Anatomic cut for perfect on-bike fit - Bib straps can cross in front or back and are extra elastic, allowing short to be pulled down for pee stops without removing bibs - Women's-specific progetto x2 air donna seamless seat pad for even greater comfort and improved airflow - Giro3 leg grippers lie flat