i got this bag to be my main commuter bag for riding back and forth to the office. it has all the essentials, helmet lock, a place to clip a light and lots of pockets for tools, spare parts and that days needs. i bought the green bag and it is bright. love it because it stands out, just wish there was still more reflective strips on the back. the light sleeve at the bottom of the bag is low. if you clip a light in vertically be prepared for it so come off once you set the bag on the floor. the bag has a vented back so you don't get too sweaty even on hot days and the shoulder pads are way comfy. the waist strap is a simple web strap, nothing padded, which is ok if your cutting weight or for the breath-ability, but for a heavy load, some pads would be nice. osprey makes some great backpacking packs with padded waist straps with pockets and i'd love to see that be incorporated with this bag. over all i love the purchase, the build in rain cover has come in especially handy.