Wigwam Men's Polypro Nylon,Olefin,Spandex Made in USA GOBI GOES THE DISTANCE: Don't sweat frigid conditions with Wigwam's Gobi Liner. This liner is designed to keep your foot dry, wicking away moisture and preventing uncomfortable blisters. It's perfect for all day wear to keep your feet at their peak performance. WARM AND DRY: Finding the perfect balance between keeping your toes toasty without creating sweaty socks is very challenging, which is why Wigwam made the Gobi Liner Socks. This moisture-wicking sock pairs well with many of our sock styles to keep your feet toasty and dry. CARE INSTRUCTIONS: A little bit of care can keep your Wigwam socks performing well for years. For best results turn socks inside out before washing. Wash in warm water and tumble dry on low heat. Maximum water temp is 120 degrees F / 50 degrees C. Do not bleach. Use normal cycle setting, set dryer at low heat. THE WIGWAM STANDARD: Wigwam Mills, Inc. is proud to knit its socks in Sheboygan, Wisconsin, U.S.A., just for you because we care. We want you to feel good about buying the Wigwam brand because we've set a standard of integrity that we strive to live up to every day. PRODUCT SPECIFICATIONS: Wigwam Gobi Polypro Undersock Liner (Black, Large). Materials: 95% Olefin, 4% Stretch Nylon, 1% Spandex. Product Features: Ultralight Weight, Polypropylene, Dry Feat, and No Blisters.