Thorlos Kids KS Snow Padded Over the Calf Sock 60% Thor Lon Acrylic, 23% Moisture Wicking Polyester, 12% Nylon, 5% Spandex Made in US No Closure closure Turn Inside Out-Machine Wash-Use Liquid Fabric Softner Padding Level: Moderate Cushion Key Benefit: Maximum Protection & Warm Feet = Maximum Comfort Guarantee - Your feet will feel better or your money back! Proudly MADE in the USA | North Carolina Thorlos clinically-tested padding under the ball and heel provides maximum protection from friction, the primary cause of blisters, and impact protection where needed most