4.5 oz./yd², 100% polyester; 100% polyester thread; Moisture-management properties; Ribbed collar; Shoulder-to-shoulder self-fabric back neck tape; Side seams; Double-needle stitched sleeves and bottom hem; EasyTear™ label; This product meets the following Sustainable Style subcategory:Socially Conscious Manufacturing: This product was made in a facility that is WRAP certified