This "classic" doesn't hold enough water to properly hydrate for even an hour long ride. I'm not sure where the design came from, but all of the straps are about 3 times longer than they need to be so they flap around if you dont secure them. When the water tube is secured, you can't drink out of it because the tube crimps. There isn't enough storage space even for a small pump, keys, id, and cell phone. There is plenty of room in this thing, its just got too small of a bladder and too much extra straps.