I absolutely love this day pack. It rolls up very compact and stores in a bigger piece of luggage but is always available when I need it. I've used it on bus tours where bigger back packs wouldn't fit overhead or under the seats.  I'm able to put two fleece pullovers (thin LL Bean ones), a compact point n shoot camera, maps and tour book, reading glasses, tissues, sunglasses, batteries, pen/paper, sunscreen, a compact umbrella, a bottle of water, a couple of snacks, and a bottle of Purell and Aleve in it with room to spare.  I love the microfiber feel, too.  I'm 5'3" and found no problem with the straps being too short.