13.5oz./yd (US) 22.5 oz./L yd (CA), 70/30 cotton/polyester, 100% cotton face yarns on solid colors . 3-End fleece, ring spun cotton . 20 singles face yarn for a durable and textured fabric face. Double ribbing side panels for stretch. Reverse coverstitch sewing on all seams for durability and a premium finish. Body panels sewn cross grain to limit shrinkage & shortening after wash. 520gm 100% cotton 1x1 ribbing at cuff and waistband. Tear away woven label.