100% organic cotton. Organic cotton cuts out harmful synthetic chemicals used to grow conventional cotton, promoting safer working conditions for farmers and a healthier planet. corozo buttons are made from tagua palm nuts gathered from the forest floor–a natural alternative to plastic. Features chest pockets with button flap closure. Often imitated, never duplicated, this is the coziest shirt ever made. Outerknown’s most beloved item for all seasons – quality that feels so damn good every time you throw it on.