Beautiful, smaller, lighter, well-processed mini backpack. Although he is smaller than I thought but had him on some day trips (Parks) with this and was always sufficient. Most loaded with two 0.5 liter bottles, sunscreen, light rain coat, sunglasses, hat. It might have been even minimal squeeze but then would the air out. The Advantage is that he was so small he could go unlike its larger cousins in almost all the rides with on travel.