2NDS. · Bridgedale Expedition Summit socks give your feet and calves superb warmth and comfort. · Cold-weather experts know that one key to keeping your feet warm is to insulate your lower legs Forward Flex Technology shapes the socks for perfect fit Extra thickness at toes, heels and Achilles for long wear Heavyweight Over-the-calf 47% wool, 34% nylon, 18% polypropylene, 1% Lycra(R) Machine wash, hang dry 2NDS. · UK Size: L(W 11-13. ·5, M 10-12. ·5) Available Colors: OLIVE HEATHER, TAL, GREY / DARK BLUE, BLACK / DARK GREY. · Sizes: L, M. ·