5.0 oz., 100% combed ringspun cotton 1x1 baby rib ; CVC Colors are 60/40; Heather is 88/12 combed ringspun cotton/polyester; White is sewn with 100% cotton thread; Flatlock stitched seams, Side seam construction; Double needle ribbed binding on lap shoulder neck, shoulders, sleeves, leg opening; Innovative three-snap closure; Snap Tape Technology that keeps kids safe and secure; EasyTear� label; CPSIA Compliant tracking label in side seam