The Nike Pro Combat Hyperwarm Shirt: Insulating fit with a twistFeaturing a diamond-shaped pattern inspired by knurling tools, the Nike Pro Combat Hyperwarm Fitted Knurling 1.2 Mock Men"s Shirt is a training essential. The tight fit helps generate heat, while flat-seam and sweat-wicking fabric help minimize distractions.BenefitsDri-FIT fabric to wick sweat away and help keep you dry and comfortableMock-neck to block out the elementsFlat-seam construction to reduce irritation during movementKnurling pattern at sleeves for styleAdditional DetailsFabric: Dri-FIT 88% polyester/12% spandexMachine washImported