Your feet and legs will thank you for wearing these Merino Wool Knee-High Compression Socks. Softer and thinner than regular wool, merino wool also helps regulate body temperature, wicks away sweat and fights odor. The knee-high socks are blended with bamboo rayon and stretch nylon for durability and comfort, with a seamless toe and comfort band. A touch of spandex ensures a snug fit that encourages proper blood flow. Graduated compression and arch supports help alleviate tension, reduce plantar fasciitis pain and relieve symptoms of varicose veins, skin ulcers and deep vein thrombosis DVT. Reinforced toe and heel offer cushion and help prevent blisters, with ankle protection that enhances blood circulation. The non-slip cuff ensures the socks stay in place. Perfect for wearing at work, during long airplane flights, or at sporting events. Your feet will stay dry and comfortable all day long in these home and travel socks. Specify size: S/M (men's 6-9, women's 5-10; calf size 9-15") or L/XL (men's 9-12, women's 10-12; calf size 14-19"). Compression socks made with 32% merino wool/31% bamboo rayon/32% stretch nylon/5% spandex.