Best work sock for sweaty feet. The Camel City Mill No-Show Wool Work Sock comes with wool's thermoregulating properties, you won't get overheated with these socks and you'll reduce blisters and soreness. With full cushion in the toe and heel, these lightweight socks still work well with steel toe and composite toe boots. Durability Backed by a 10-year Guarantee. One single thread of Ironside Merino wool from a Camel City Mill sock is strong enough to pick up a 15 pound weight. Camel City Mill is so confident in its durability that they offer a 10-year durability guarantee on their socks. If the socks get a hole in them, ship them back and they'll send you new ones. High Voltage Industries has partnered with Camel City Mill to offer some of their bestselling products (MADE IN USA) NOTE: Ships separately from other HVI products