This sturdy backpack from Dutch brand Sticky Lemon is perfect for Summer adventures ahead of back-to-school. This largest size is great for Kindergarten all the way through middle school.

Made from recycled PET bottles, these feature adjustable shoulder straps, a sturdy zipper and a front pocket.

It has an envelope-style pocket on the front with metallic technical fabric, a waterproof lining with a hand-drawn pattern, and adjustable shoulder straps. On the inside you'll find an elastic band that serves as a bottle holder and a pocket all over the back that closes with velcro. There is also a name tag to put your info.