Specification: Name: primary school student backpack Color: 2 colors optional Material: wear resistant and durable material Weight: 550g,650g Structure: main bag multifunctional zipper bag Sliding side bag Size: 45*32*17 cm Light construction Free your child The bag weighs only 650g, which reduces the load on children from the source and makes it easier for children to get to and from school High density hydrophobic fabric Travel without fear of rain The lotus leaf is waterproof, and the rain falls on the bag and can quickly slide without penetrating into the bag, effectively protecting items in the bag from getting wet by rain - Return reflective design Travel safely at night There is a reflective warning strip at the back of the tornado. Strong reflective material is used to reflect strong light at night or in the dark, improving the safety of children. Ergonomic style Scientific care of spine health Ergonomically balanced back force, several times buffer impact on the back evenly distributed to avoid damage caused by high pressure Package includes: 1 squatornister (two colors optional)