Please note that this item has been stored at home and may have delicate creases. Thank you for your understanding. Product Details: One light blue (blue) school backpack Main Material: PU synthetic leather. Size of the kids' backpack: Large: Outer dimensions/Width approx. 29cm x Height approx. 38cm x Depth approx. 18cm; Small: Outer dimensions/Width approx. 27cm x Height approx. 35cm x Depth approx. 16cm 【Excellent Waterproofing + Night Reflective Tape】: The surface is made of PU leather with excellent water repellency. You don't have to worry about your child's bag getting wet on rainy days. With 360° night reflective tape, it reflects the light of vehicles at night, alerting drivers and ensuring the safety of children, giving parents peace of mind! 【Burden Reduction System】: The back padding uses breathable cushion fabric, which is also less likely to get stuffy. Considering that children's spines are still developing, the curved line design of the back padding fits the child's body, reducing the burden and making it easier to carry. It disperses the weight from the bag to the body while effectively protecting the spine. The shoulder straps have breathable double cushioning on the shoulder area to reduce weight and impact. In addition, the adhesive surface of the belt has been widened to reduce the burden on the shoulders.