Keskikokoinen nylon-käännettävä kantolaukku - musta sekoitus

Flipping it inside out basically gives you two bags, which I didn't expect to use as much as I do. My 13" laptop slides in with room to spare for a sweater, and the straps sit comfortably on my shoulder even when it's loaded up.

The reversible thing sounded gimmicky until I actually used it—now I switch to the other side whenever I get bored of black. It swallows my 13" laptop plus a spare sweater with room to spare, and the nylon wipes clean after my commute.

Flipped it inside out on a whim and got a whole different bag out of it, which is more fun than it should be. The medium size swallows my 13" laptop plus a spare sweater without looking bulky on my shoulder.