The Superduty is our trophy boot, our reputation was built on it. Built to tackle the toughest jobs in any terrain, and we’ve got the boots on the ground to prove it. With the highest quality build and materials on the planet, give them a challenge worth their grit. The unique combination of the bison's strength and flexibility is prominent in our entire Bison collection. The moment you slip on a pair of these one-of-a-kind work boots they mold to your feet because of how soft and thick the hides are. Expect no break-in, instant comfort, and long-lasting support wherever you roam.  Specifications Shaft Height - 10" (boot heels excluded) Uppers - Smooth 8oz premium oil-tanned USA leather Lowers - Smooth 8oz premium oil-tanned USA leather Thread - High strength, NFPA Rated Technora® fire resistant to over 900 °F Hardware - Traditional brass high-quality eyelets and speed hook combo Insole - Genuine oak-tanned leather Midsole - Genuine oak-tanned USA leather Arch support - USA leather Sole - NFPA compliant Vibram RedX Fire Hard  Adhesive - NFPA compliant adhesives throughout boot construction Origin - Handmade in the United States of America