The perfect little pack for preschool, the play park, or a weekend trip to visit the grandparents - the BUTTERCUP is our smallest day pack for children. It is light and very robust.The zip on the main compartment is very easy to use, so mini outdoor fans can get to their kit without adult help. They can pack their snack box, juice and toys all by themselves.And because the BUTTERCUP is equipped with our SNUGGLE UP back system, children as young as two can easily carry the pack themselves. It is extremely flexible, well padded, and sits securely and comfortably on the back.