The Wigwam Hiking/Outdoor Pro Crew Socks were formerly know as Ultimax Hiking/Outdoor. A great year-round weight for all classes of hiking footwear, the Hiking Outdoor Pro Crew Socks feature a moisture-absorbing acrylic fiber that exhibits antimicrobial properties; perfect for all day treks. This Wigwam Pro Series Sock stays up with no sagging or bunching and offers abrasion resistant protection. Cushiony all over with a fortified heel and toe, the HikingOutdoor socks protect your feet from long hikes and the virtually seamless toe closure prevents irritation. For all your treks and travels, keep your feet dry and comfortable with the Wigwam Hiking/Outdoor Pro Crew Sock.