Here to keep you comfortably warm throughout long rides in chilly weather, not to mention while repping your favorite team, the Santini Trek Fan Line Classe Long-Sleeve Jersey is a pro-level technical piece that you'll definitely want in your arsenal. Its construction combines Hotwind fabric with thermofleece on the back, neck, and sleeves for both a sleek look and a soft fit and feel. The fleece traps in warmth without losing its ability to breathe, ensuring that vapor can escape as you work up a sweat. The full-zip design makes mid-ride layer changes a breeze, and allows you to vent the jersey as things warm up. Three pockets on the back hold your essentials, so you can feel prepared and pedal with peace of mind.