4.3 oz./yd?, 100% combed ringspun cotton, 30 singles; Athletic Heather is 90% cotton, 10% polyester; All other Heathers are 50% cotton, 50% polyester; Coral, Red Heather, Turquoise Heather, Charcoal Heather, Kelly Heather and Royal Heather are 50% cotton, 50% polyester; Set-in rib collar with shoulder-to-shoulder taping; Double-needle sleeve and bottom hem; Preshrunk to minimize shrinkage