“It's a very versatile bag. I can't carry any load on my shoulders, so a regular backpack is out of the question. I use this bag for commuting. It fits my 13'' laptop, a bunch of A4 files (5cm thick in total), a book, 2 A5 tablets, some cables, pens, etc... Usually I carry it by hand, that works great. But if I go on bike or for longer walks, I use it as a lumbar pack (with the shoulder strap for balance).
This is my second Mountainsmith Day Lumbar Pack. It's almost the same as the one I bought years ago.”