50% Polyester. 50% US Cotton. 203.0 G/SqM (White 193.0 G/SqM);Yarn Count 18/1;Proud member of the US Cotton Trust Protocol (USCTP);Cotton products from Gildan support more sustainable + ethical cotton farming;Companion style: 8800;Midweight fabric with DryBlend® technology;Contoured welt collar and cuffs;Clean finished placket with dyed-to-match buttons;Classic fit. tubular body;High-performing tear-away label;CPSIA Tracking Label Compliant;