Go ahead, extend your riding season. Bontrager's Trek Factory Racing Thermal Long Sleeve Jersey keeps you toasty on almost any winter ride. Profila Thermal fabric breathes well and traps heat next to your skin, so you stay warm and dry. The streamlined fit makes it a great option on its own, or layered beneath a vest or jacket. A full-length zipper with draft flap lets you regulate your temperature, and a drop tail and hem gripper keeps the jersey in place while you're riding. Three back pockets carry needed items on those long off-season rides.