3.5 oz., 40 singles; 65% polyester, 35% combed ringspun cotton heathers; Note: The Polyester content is transitioning to Recycled Polyester. Mixed inventory may occur.; Fabric laundered for reduced shrinkage; 1x1 baby rib-knit set-in collar; Clean finish ; 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.