Craft Sportswear Women's Active Comfort Long Sleeve Lightweight Base Layer Zip Shirt 70% Polyester/30% Polyamide Imported Lightweight and warming yarn for optimal thermoregulation Excellent moisture transport keeps your body Dry and comfortable Flatlock seams that follow body movements Body mapped with different structures for optimal thermoregulation Seamless design for optimal freedom of movement Craft is the official apparel and footwear sponsor of Spartan Race