- Mathilda is a large, practical and sporty crossbody bag that can fit everything you need in busy everyday life including computer, books and cases. The bag has one large compartment as well as 3 differently sized zipper pockets. The bag is closed with a fold-over flap with teo cool metal buckles. The strap is easily adjustable to fit every need. Mathilda is perfect for school or work. Mathilda is made from recycled plastic bottles collected from all over the world! When you shop this bag, you can look your best whilst keeping the planet clean.