I use this as a purse. I've had the same one for 4 years now, and I can't bear to get use anything else. It's been great for my field work from Death Valley to ocean vessels. It's also great when I just need to bring stuff to keep me from getting bored. I've been able to fit a book, knitting, a DS, and my wallet all in there. I frequently clip my water bottle to the strap when I don't have my backpack. I love this thing, and if mine ever wears out I'm getting the exact same one.