Comfortable, very good support on the back, ideal capacity. It lacks maybe an outside pocket and a door lock U. The unit is completely sealed solid and very good quality. Otherwise the back of the ventilation system is more than relative: bike with a backpack back sweat! The yellow model is super light and safe, you can also hang a flashing red light. The price is high, but it was worth the money. For me it is the ideal carrying system in place where we try to be as narrow as possible to sneak ... Well set, it does not bother me to breathe and forget the shoulders.
