Wigwam, The Sock Company, has been manufacturing socks in the United States since 1905. All Wigwam socks come with the satisfaction of knowing that 111 years of quality, innovation and a genuine appreciation of their customers. Wigwam has two performance technologies Ultimax Pro and Fusion Pro. The Wigwam Ultimax Pro technology is patented to Wigwam and helps with moisture management. It affectively uses both hydrophobic and hydrophilic fibers to move moisture from the foot bottom up and out of the sock allowing your feet to be dry and blister free. The Wigwam Fusion Pro technology is a sock and liner in one using Olefin in the liner and Merino Wool on the outer sock. Both fibers are fused together in the knitting process to prevent slipping and blisters.