There was a all leather single strap disc golf Bag a Leather suitcase company was trying for get going using this site for test. Problem was the bag was not much more then the size of the Innova Standard Disc Golf bag and could not take a set of the Quad or even tri style connection straps that are like the Quad straps well. Leather Bag had to have a handle on the bag top itself, something most brands that had a strap like this on the small bags abandon in the 2000's as they were not used much if ever by the disc golfer, at most for the tri style connection straps to make the bag usable for a smaller version of the Innova Deluxe that was in the Discraft Tournament bag style just, the first bag to have loops for the quad Straps made for the Construction belts that are big and sometimes need to use some belt loops or holes for the Quad straps. The company folded the idea.
Now I see on Amazon some backpack bag that look like the Throw Back model, All Day Pack original backpack not the current Tri Stool All Day Pack that now has the Spot for the stool it comes with to sit in a slot in the bag when not in use. The knock off backpack bags use grounded rough leather for the bag made in China using cheep cow leather scraps from horrible really bad factory farming but the outer pockets on knockoff are all the stretchy material that the Throw back pack used except for all the outer pockets as leather is not great for pockets that need to stretch over time. The Bag is not to be confused with a Tan cheep knock off of the original Throw Back All Day Pack that has changed names a few times on Amazon with the same name of seller from China to it.