ECO///Bamboo (Rayon from Bamboo): 66% Bamboo (rayon from Bamboo) / 28% Cotton / 6% Spandex. A set in sleeve four button polo featuring a contrast single needle accent stitching detail along a dropped shoulder seam, and sustainably harvested Tagua nut buttons. A soft and smooth fabric with a comfortable, casual fit. This item is in-stock in three colors, with a matching ladies' version. This fabric is Oeko-Tex Standard 100 certified. Sizes: Small to XXL.