New Balance NBx LC1 Hydrotec Sock spandex 71% Hydrotec Polyester, 26% Nylon, 2% Spandex, 1% Polyester Lightning Dry Moisture Management Antimicrobial with a seamless toe, left/Right technology and Strategic cushioning stike zone 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. USA