Look guys. My point is that not all companies make the space usable. My opinion via testing out several bags is that I get the same things in a larger volume Osprey bag than I do an Arc'teryx because the overall space is better utilised in the latter. My 20l curves to my back and it wider and the top and narrower at the bottom. It just makes sense for longer pointed shoes.

Just like packing luggage.

I think that the student above could get all of his/her in my 20l Arc'teryx spear bag.

Just buy better designed gear, unless you don't want to.