Duluth Pack makes some of the sturdiest packs around. If you want an old school style rucksack made of canvas and leather, this Minnesota-based company should be your first stop. The gear is proudly made in the USA and the label stands by the quality its bags so much there is a lifetime guarantee on the products. If you've managed to damage the sewing or hardware on any of these bags, send it back to Minnesota and they will fix it for you for free. It's rare to tear a hole in these things, but it happens.