Check out my writing and findings about the evils of Polyester here.
LEATHER KNAPSACK SKIN
In bed sheets and clothing, it causes poor sleep, infertility and skin problems but when a leather backpack is sewn with it, it causes great rejoicing in your life and big fights in your death. Polyester is horrible when fabric is made with it but great when thread is made with it. And we use the thicker double ought version for all of our leather backpacks.įYI. It is made from long continuous filaments of Polyester with no breaks in them. Our expensive German thread was engineered to last long and be strong. Those fibers release from each other with hardly any friction, heat or UV light and then the backpack falls apart. Leather backpacks sewn with low quality nylon thread will fall apart in a short time because that thread is made from a whole lot of really short fibers wound together to make one long thread. It's expensive but we decided to never have a problem with the hardware of our backpacks. It's one of the hardest highest tensile strength metals out there and what most high end watches and even Apple's most expensive iPhone bodies are made of. Our large buckles on the bottom of the backpack shoulder straps are rated for up to 750 lbs. Of the 150 types of Stainless Steel one could choose, ours is rated at a whopping 91 on the Rockwell Hardness Scale. It is expensive and kind of overkill, but if your life had to depend on the hardware of your leather backpack making it through, you’d want it to depend on ours. If you tell a metallurgist that we use 316 Stainless Steel hardware on our backpacks, they'll gasp and then get angry and then they’ll cry. It’s Stainless 316 and that’s a big deal for any backpack. Building a leather backpack using 316 Stainless Steel hardware is kind of like killing a fly with a shotgun, but we’ve never once had a backpack have a problem because hardware failed. Pigskin is not as tough as kangaroo skin, but stronger than cow skin and that makes our leather backpacks twice as strong as a normal leather backpack and much longer lasting.
LEATHER KNAPSACK FULL
Instead of lining our leather backpacks with some shiny pretty nylon fabric that tears, we glued and then sewed on tough smooth pigskin to the back of the already tough and thick full grain leather. Even the best leather stretches over time (it’s called creep), but polyester strapping does not. And then our thick wristed, calloused handed craftsmen make really durable and long lasting leather backpacks with it.Īnywhere the leather backpack could get stress, it gets a double layer of leather cut from the hardest part of the hide (the shoulder or along the back), extra stitching, a rivet to back up the backpack’s stitching and usually a reinforcing hidden Polyester strap sewn in for good measure. Not only is it strong, but the thickness of our leather is a little thicker than boot leather. It’s called FULL GRAIN leather because it still has the FULL amount of GRAIN on it. The same fibers that protected the cow its whole life and that give leather it’s bareknuckle tough reputation are the same fibers that we use on each of our leather backpacks. They are the toughest, densest and most water resistant fibers of the whole hide. The top half is sold for a lot of money because it still has the top layer on it which is made up of what is called the “grain”. Now the tannery has two hides to sell to leather backpack makers. Watch our video of how they tan and split it and also watch me ride a longhorn bull in my full leather suit. Okay, now imagine that thick hide is sent to the tannery to be tanned, but it’s too thick for most to use, so they split it in half, the top half from the bottom. Even a billion dollar submarine quickly becomes a worthless heap of junk if they build it with a cardboard hatch.Ĭlose your eyes for a minute and imagine a cow being killed. There are no breakable parts on this leather backpack like snaps, zippers, buttons, Velcro or any other Hello Kitty construction parts.
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