I like the backpack, but have some suggestions. It's well made and reliable. It fits a lot of stuff from laptops to extra sweatshirts. The three sections work well and there are small pocket areas. At first I thought it was too large, having expected something smaller from the descriptions. But it ends up that I like the size too. Straps are adjustable and comfortable. Suggestions: * Reflectors for walking and wearing the backpack around traffic. * At least one section that can be made secure with a luggage lock. This would seem to require a double zipper with openings large enough for a small padlock to go through both, thus keeping that section safe. Now there is something like that, but the same section has an extra zippered opening that can't be locked. * Directions for first use as how to put on and remove the backpack, without straining any muscles. * Dimensions (overall) in the sales information would help.