4.3 oz. 32 singles; 100% combed ringspun cotton fine jersey; Heather Grey: 90% cotton, 10% polyester;1×1 baby rib-knit set-in collar; Tear-away label; Next Level Apparel has a recycling program for all fabric waste collected from the cutting process. All fabric scraps are sent to a recycling company that cleans and processes them to be used for cushion filling, rugs, etc. To date, 24.3M pounds of fabric have been recycled.;