The BUTTERCUP is one of our smallest children’s day packs. It is light and very robust. The pack is sustainably made from recycled materials. The zip on the main compartment is very easy to use, so mini outdoor fans can find what they want without adult help. And they can easily carry the pack themselves, too, because the BUTTERCUP is equipped with the SNUGGLE UP back system, designed for children aged two and older. It is extremely flexible, well padded, and sits securely and comfortably on the back.