FoxRiver Fatigue Fighter Over-The-Calf Compression Socks 60% Polyester/35% Nylon/5% Spandex Made in US Our gentle 8-15 mmhg graduated medium weight compression socks for the legs helps promote blood flow and resist fatigue These foxsox also feature our exclusive WICK Dry Technology, which quickly draws moisture away from your skin These otc socks know one thing and that is that Dry feet are happy, healthy feet that resist hot spots and blisters Our exclusive urfit system adds support where it's needed most Proudly made in the USA, these fatigue fighting socks have vented panels that remove moisture and keep you Dry