6 oz./yd (US) 50/50 cotton/polyester knit, 18 singles; moisture-management fabric delivers both comfort and coolness. ; Classic fit; Contoured welt collar and cuffs; Clean finished placket with dyed-to-match buttons; Tear away label; CPSIA Tracking Label Compliant; Proud member of the U.S. Cotton Trust Protocol; Gildan partners with Better Cotton to improve cotton farming globally; Made with OEKO-TEX certified low-impact dyes