5.0 oz., pre-shrunk 100% cotton High-density fabric for exceptional print clarity Seamless 1x1 rib collar Tearaway label Double-needle stitched sleeves, bottom hem and front neck - 5.0 oz., pre-shrunk 100% cotton - Ash is 98/2 cotton/polyester and Athletic Heather is 90/10 cotton/polyester - Black Heather, Neon Colors, Safety Colors and all Retro Colors are 50/50 cotton/polyester - Seamless 1x1 rib collar - Shoulder-to-shoulder taping - Double-needle stitched sleeves, bottom hem and front neck