Nike Pro Hyperwarm Ambush Crew Fitted Men's Shirt, Cargo Khaki, Large Body: Dri-FIT 88% polyester/12% spandex. Mesh: Dri-FIT 92% polyester/8% spandex. Imported Dri-FIT Max fabric wicks sweat away to help keep you dry, faster Thermal mesh at the back and underarm for breathability Ergonomic seams for enhanced comfort Flat seams move smoothly against your skin