NEBO Sports Fox 75+10 L Internal Frame Backpack. Not the highest quality of materials, but functional, capacious, and a lot cheaper than most options. Compare with: https://www.ebay.com/itm/Nebo-SPORTS-FOX-75-10-INTERNAL-FRAME-HIKING-BACKPACK-BLUE-BLACK-/113741481399?_trksid=p2349526.m4383.l4275.c10#viTabs_0

FYI the straps connecting the top lid to the main compartment need to be repaired/replaced. Otherwise in good shape.