Castelli Mortirolo V Reflex Jacket Size X-Large White, Black and Red Color Combo Named after the famed Mortirolo pass, the Castelli Mortirolo Jacket lets you ride comfortably in temperate winter climates. Utilizing some of the technology found on the Espresso Due, this jacket is geared more for riding in moderate temperatures (higher than 46 F) while providing ample wind protection.The Mortirolo is constructed in two parts. The front utilizes WindStopper X-Fast 2 Fabric, which features four-way stretch, designed to eliminate pulling and bunching while riding. Since full windproof coverage isn't needed in moderate temperatures, air-permeable polyester fabric on the back allows body heat to escape while still keeping cool wind off your core. The Motorola is cut in a slim fit to prevent flapping as you ride. The two vertical zippers on the front of the jacket give maximum ventilation when used with the full-length zipper to dump heat while you are climbing. For a light air flow, simply adjust the side vent zippers to where you want them.The Castelli Mortirolo Jacket is finished off with an elastic gripper along the bottom hem to keep the jacket from riding up. It comes with three rear pockets for your riding essentials and rear reflective tabs and piping on the chest to keep you visible during low-light conditions.