For the last 25+ years it's been the same bag. A Chouinard climbing pack that was modded by a fellow by the name of Leon Greenman in Greenwich Village. I asked him to add a padded waistband and an internal frame, he did a fine job of it. I've been able to load it up with tent, sleeping bag&pad, cooking gear, knife, fire gear, food, water, collapsible saw(lighter than an ax,candle lantern, other asst. stuff. I had to replace the zipper once so far & the original leather lashing patches have torn so I will have to replace them.