Depending on where you ride, you might wear a heavy-duty jacket a few times a year, but a long sleeve jersey like our RBX Expert Long Sleeve Thermal Jersey has the potential to be worn on every ride. It&';s designed to both insulate and manage moisture buildup, keeping you cozy. Three back expansion pockets provide plenty of storage for your ride essentials and electronics. Fabric Content: MAIN: 94% Polyester, 6% Elastane - OTHER: 85% Nylon, 15% Spandex Fabric Content: MAIN: 94% Polyester, 6% Elastane - OTHER: 85% Nylon, 15% Spandex