Wigwam F8032 Hot Weather BDU Pro Socks. Thicker than our Hot Weather Dress sock, Wigwam Hot Weather BDU Pro helps your survive long days in tough boots. Wigwam patented Ultimax technology combined with drirelease Tencel to provide fresh and dry comfort during maneuvers. The Wigwam Pro Hot Weather Crew Sock work to resist moisture. They are the perfect blend of materials. Beginning with Dri-release, X20 Acrylic, Stretch Nylon and a touch of Spandex these socks provide cozy wear and stay put. It is Berry compliant NTOA Approved and made in USA.