New Balance LC6 Kid's Sock polyester 62% Polyester, 35% Cotton, 2% Spandex, 1% Nylon Lightning Dry Moisture Management Comfort Toe Seam with Y Pocket Heel Fit Machine was warm with like colors. Only non-chlorine bleach when needed. Tumble dry low. Do not iron. Do not dry clean. Do not use fabric softener or dryer sheets. China