Gore Bike Wear Men's Alp-X 2.0 Thermo Jersey, Small, Red/Black 87% NYLON,13% ELASTANE,INSERT:85% NYLON,15% ELASTANE, Imported Over or under: a cycling jersey made of push-pull material that can be worn under more layers in cold weather, or on its own in moderate temperatures. Anti-slip features on the shoulders. Tight fit Raglan cut Silicone print on shoulder area for abrasion resistance Close fit collar Full length zip with semi-lock slider Zip-underflap and zip-port Raglan cut Raglan cut Silicone print on shoulder area for abrasion resistance Close fit collar Zip-underflap and zip-port