I have been using army surplus bags for years and was looking for a decent new one that wouldn't get full too easily but that also wouldn't invite my stuffing it with crap. This bag easily fits those requirements. I like the option of using the smaller pockets for stuff that I tend to carry all the time but that I don't need clogging up the main pockets. The two inner pockets are truly pockets (not just a divider as I've seen on some bags, where things can slip underneath) and the zipper pocket allows you some added security. The buckle is strong and sturdy and I honestly tend to wear the bag without clasping it as the top flap is heavy enough to just lie on top (unlike in the picture, the flap actually covers the entire bag when you aren't carrying a lot of stuff.) I carry my wallet, a notebook, some pens, aspirin, my Ipod and headphones, hand sanitizer, first aid kit, mints, a hat, change purse, chapstick, mirror, cough drops, and tissues daily and this bag fits all that and still feels spacious and practically empty! I like a bag that has a decent capacity when I need but doesn't look ridiculous when not full. If I want, I can still throw in a magazine, an umbrella, a bottle of water, and a sandwich. I can't pack for an overnight or load it with textbooks but it is perfect for daily use on crowded subways.