Great size for my kindergartener. Love the backpack side pockets for water bottles it fits different size bottles like zak!, owala, and thermos. The lunch bag is also a good size and also has a side pocket. The lunch bag fits the omie lunch box inside perfectly (I tried both the bigger and smaller box).

Much smallwr than expected and very light. PRE-K, K and maybe 1st grade. Attachable lunch bag is nice. Kiddo might need some practice getting it on and off the backpack.