Castelli Transparente Due Wind Jersey FZ is a favorite for autumn and spring riding, and is warmer than the stated comfort range of 50°F. It is as light as a jersey, as warm as a jacket, and remarkably breathable with a cut that makes you forget you have it on. Windstopper X-Lite Stretch fabric on the front is windproof and splash resistant, effectively sealing out the cold elements. Rear panels of easy-breathing warmer fleece provide insulation and enhance wicking. A high, soft collar shields your neck and chest without restricting movement. Other details include a full-length zipper with draft flap, a zippered mesh-lined front pocket, three rear pockets, reflective piping on the front and rear, and elastic gripper on the waist to limit ride up. Recommended for temperatures between 50°F and 64°F.