Transparent backpack: transparent backpack is made of transparent PVC material, and all seams are reinforced with double stitches to avoid tearing and easily bear heavy objects. Transparent large clear view allows quick inspection to . Sewing of reinforced straps: adopt reinforced stitches to firmly fix the shoulder straps; The shoulder strap is specially designed and than usual to reduce the pressure on the shoulder; of each shoulder strap is reinforced with double PVC materials for sewing. Multifunctional compartment & large capacity: This transparent backpack provides decent space for different purposes. Upgrade material: the material of this transparent bag is customized for environmental protection and cold resistance. It is safe for , so you don't have to worry about it breaking in cold winter. Suitable for many occasions: transparent backpack fully meets the requirements of universities. It is also convenient to check all the preparations you need, because it is specially designed for teenagers. Colour:B:Gray Material:PVC Package Contents: 3 * Transparent bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.