New Balance Kid's No Show Socks (6-Pack) Polyester 68% Polyester, 27% Cotton, 4% 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