Therapeutic Merino Wool Loose Fit Socks -45% merino wool, 50% nylon, 5% spandex. -Merino Wool resists against microbes and odor, so foot fungus and smelly odor will not be a problem while wearing our products. -Merino Wool's natural wicking ability absorbs moisture and releases it back into the air. -These quality, durable diabetic socks are approved for individuals with circulatory problems,diabetes, edema, and neuropathy. -Made in the United States.