4.6 oz., 100% ringspun cotton preshrunk jersey, 30 singles Aqua Velvet Heather, Candy Hearts Heather, and Mint To Be Heather are 99% cotton/ 1% polyester Athletic Heather and Peppered Red Heather are 90% ring-spun cotton/ 10% polyester Charcoal Heather, Black Ink Heather, and Retro Heather Purple are 60% cotton/ 40% polyester Seamless 1x1 ribbed collar with two-needle coverstitching on front neck Quarter turned to eliminate center crease Classic fit with shaped armholes Shoulder-to-shoulder taping Two-needle on bottom Tear-away label.