This bag looks small at first, but it can fit ALL your stuff. The zip closure is well made, and the bag opens up wide, making it easy to throw in a wallet, a water bottle, and a sandwich for later. Two open and one zipped interior pockets make finding what you need (like sunglasses or keys) a breeze. The two exterior pockets are big enough to hold your phone and the ticket for the parking garage that you routinely manage to misplace. The single strap fits comfortably over your shoulder. If this bag was in all the colors, I would buy one of each.