4.5 oz./yd, 100% combed ringspun cotton, 30 singles. Ash is 99/1 combed ringspun cotton/polyester. Heather is 90/10 combed ringspun cotton/polyester. Granite Heather is 60/40 combed ringspun cotton/polyester. White is sewn with 100% cotton thread. Topstitched ribbed v-neck collar. Self-fabric back neck tape. Side seams. Double-needle stitched sleeves and bottom hem. EasyTearlabel..