Champion Men's Reverse Weave Crew Solid Body: 82% Cotton, 18% Polyester; Silver Body: 80% Cotton, 20% Polyester; Granite Body: 66% Cotton, 34% Polyester; Rib: 78% Cotton, 22% Polyester Imported Machine Wash Signature 1x1 rib panels for maximum range of motion Double needle construction for extra durability Cut on the cross-grain to reduce length shrinkage Full athletic fit