When cold weather or rain cant stop us from getting out and putting in the miles, we opt for the Castelli Alpha Doppio RoS Limited Edition Jacket to keep us comfortable and protected on the bike. Made with GORE-TEX INFINIUM WINDSTOPPER 150 fabric and a 2-layer design, the Castelli Alpha Doppio RoS Limited Edition Jacket is warm, weatherproof, and stylish. The 2-layer jacket design allows us to open up the wind and waterproof layer when the rain stops so we don't overheat while keeping the bottom insulated layer closed for lightweight warmth on chilly days. Polartec Alpha Direct insulation supplies lightweight insulation that keeps us cozy in temperatures down to the mid-twenties. A silicone gripper on the bottom hem keeps the jacket from riding up when we are in riding position, and a double-layer cuff integrates with our gloves so no cold drafts get inside our jacket. Three rear pockets allow us to take along all of our ride essentials, and reflective accents help keep us seen in low-light conditions.