Cariumas always run too narrow for me. They seem nice, though

I've had an Evolved Motion backpack for four years now and I love it. It's meant to go between weight lifting bag (up to 80 lbs for the large) and a regular ol backpack. I have both a large and a medium, and use them both for weight lifting and carrying my stuff around. It's got very solid construction, I think it will last 10+ years with heavy use. https://theempack.com/