Ultralight IKEA-Bag Backpack
I'd like to ask a related question I've been meaning to get to doing some research on for a while but have been a little stumped on where to start with. Thought I'd borrow this thread to get the chance to ask HN.<p>Public transport in my area is really awesome so it's how I get about the most, and I occasionally carry a couple of reasonably heavy items (20kg+ / 44lb+) on short trips. I'm currently using a medium-size Macpac bag for almost everything, but it has no spinal support and I tend to hunch when it's full, and on the occasions all my items go beyond 10kg I have to split everything into an extra bag.<p>I'm currently wondering if there are unicorn backpacks out there that are reasonably light (not ultralight), reinforced to handle 20kg+ loads, and built to last for years.<p>I know the military use industrial carrying frames to handle their crazy 50kg+ (110lb+) loads, and I think I'm looking for something similar to that, since that's a situation where you <i>have</i> to provide good support or you risk serious spinal damage, and the thing <i>has</i> to last for a while while it's out in the field where it can't be easily replaced. That said, I don't want to be stick out like a sore thumb carrying a massive camo-fabric sack around.