New Balance Kids Unisex 6 Pack No Show Socks 68% Polyester, 27% Cotton, 4% Spandex, 1% Nylon Imported Stability Fit built in for enhanced arch support Knit-in size indicators (M/L) Lightning Dry moisture management technology quickly moves sweat so your feet stay cool and dry 6 pairs per package Stability Fit Arch Support & Hold Size Matching (M/L) Lightning Dry Moisture Management Y Heel Pocket Fit Comfort Toe Seam