Botetrade Children School Backpack Bags for Primary Girls Students PU Leather Bow 1. Material: PU Leather + Polyester. Size: 28cm * 17cm * 41cm. 3. Weight: 650g. 4. Bowknot and plaid design, lovely for girls. 5. Orthopedic back design, S-curve padded wide shoulder strap, padded top handle-all for comfortable and protective wear.