Built for athletic endeavors but equally comfy for wearing around the house, Mountain Socks are a versatile must-have. Ours are long enough to be worn with hiking boots, and their wool knit will keep your feet warm even if they get damp. Features & Specs Heavyweight wool blend Soft terry knit Elastic band at mid-foot Rib at shaft of sock Reinforced toe and heel Screenprinted logo at bottom of foot Speckled marl Materials: 64% wool, 24% nylon, 10% polyester, 2% spandex Sizing: S/M - U.S. Men's 4-8.5, U.S. Women's 5-9.5 L/XL: U.S. Men's 9-13, U.S. Women's 10-12 Made in China Sustainability BSCI certified production. Meeting fair labor standards and sustainable practices for the safety, health, and wellness of employees and the environment.