Wigwam Men's Camo Pro Crew Ultimax Hiking Sock, Green, Sock Size:10-13/Shoe Size: 6-12 34% Nylon, 32% Merino Wool, 32% Lyocell, 2% Spandex Made in US Machine Wash Made in the USA Lightweight cushioned sole Merino wool insulates and resists odor Ultimaxpro keeps feet dry and odor free Breathable mesh air vents