Nike 1/2-Zip Therma-Fit Cover-Up PHOTO BLUE/BLACK/BLACK/METALLIC SILVER M 100% Polyester Mock neck that zips up to the chin for custom coverage Brushed interior for warmth and comfort, Mesh side panels for enhanced breathability Side pockets for storage Self-fabric collar, rib cuffs and hem for enhanced fit Fabric - 100% polyester Therma-fit fabric to help keep you warm and insulated