I have this packed with about 45lbs of gear. Once I get water onboard I'm about 55ish. It feels comfortable hiking well into ten miles before I get tired of carrying it. My 3-6Mile treks are easy with this pack, and it is now my go to for humping sh*t. I also carry around my neighborhood and look like a dork, but hey, I gotta keep getting some sort of exercise at my age and stay ready for the sh*tstorm coming in January. A little on the high end of the price point, however, it is worth the price tag in quality. This is a huge win as there are limited supplies in my area as far a local MilSurp sales.