From Jeri Designs website: For our Jerry Garcia replica guitar strap we start with a super thick piece of heavy duty leather. Jerry had two versions of this strap, and the leather and style we use is like the first of this version strap that he started wearing in 1973. The strap is cut to 2.75" wide, with a thinner strap in the front for adjustment. We've attached the buckle with a strip of leather and Chicago Screws for a secure hold and, and oxidized the buckle so it looks like Jerry's did.