Pearl Izumi - Ride Men's Select Thermal Cycling Tights 90% polyester, 10% elastane Importado Draft flap behind ankle zipper for warmth 3D Tour Chamois optimizes riding comfort Model/Year 2015 SELECT Thermal Fleece fabric sets the benchmark in warmth and moisture transfer Anatomic multi-panel design Flat lock and double needle seam 8" lower leg zipper with zipper garage Reflective elements for low-light visibility