One set (crew neck top & pants) Champion Mens Thermal Underwear, size Large. Classic long sleeve Thermal Crew Neck Top with cuffs *C" logo on sleeve and ribbed fabric for added styling The comfort of 98% Cotton flexible knit fabric 4-way stretch and freedom of movement from 2% Lycra Spandex added to fabric.Generous fit wash after wash. Flat seams prevent chafing and reduce seam bulk. Package has "Slightly Imperfect" label on front.