Castelli Alpha Jacket

The folks at Castelli have once again re-defined winter cycling apparel! The Alpha Jacket separates the insulating layer from the windproof layer, so that you can vent without freezing. The Windstopper 150 fabric is windproof, water-resistant, and offers four-way stretch for freedom of movement. Its asymmetric zipper lies flat and prevents chin-rub. The warm insulating layer has its own zipper and features a close-to-body fit with stretch fabric. The single-layer back panel also offers exceptional ventilation. An articulated collar seals out drafts whether you're in an aero tuck or walking into the coffee shop for a mid-ride espresso. Castelli used a raw-edge aero finish on the waist and wrists to ensure a smooth, streamlined fit, with no billowing, bunching, or drafts. Three external rear pockets let you stow energy bars and small essentials, while two zippered rear and front pockets allow you to securely stash your phone, ID, and cash.