Depending on how much you want to spend, I’ve found GoRuck’s products to be absolutely bomb proof in the past, and their GR2 should meet your size requirements https://www.goruck.com/collections/gr2.

There are a could quirks to them though – they unzip completely open, but are a single storage compartment design. I mention it because it’s a design I absolutely love but if you are looking for a lot of interior compartmentalization maybe look elsewhere.

The biggest potential downside (side from cost) is the tacticool styling and the weight (although that weight is due to the durable fabrics). I should also note that I have bought from them several times (for myself, and then for family), but not since COVID and the consequent effects on many businesses profitability. As of when I last bought they were still well-made and we’ve beaten the heck out of them with no damages.