I was long looking for a backpack, which should replace the 'small' rucksack. But for four-year-olds there are not too much. Either too large or too small. This backpack fills this gap. It fits perfectly, even if the belt is not closed front. He has wide straps. Both pockets provide space for utensils. Front fit in more than just the handkerchief pack, behind it is spacious. We pack pure two lunch boxes and even a jacket, among others. The width fits perfectly on the back. The length also. I would take this backpack again.