Backpacks For Teenage Girls and Boys

Material: Oxford fabric, polyester 
Weight：  0.51kg (default )  ; 0.47kg ( large size , style A); 0.4kg(small size styleA）
Size: 32*44*19cm ( default) ；  45*30*14cm( large size , style A)   35*27*13cm (small size styleA）

Thick sponge breathable shoulder strap for more comfort.
Shoulder strap joint reinforcement triangle processing, strong and durable.
Small zipper pockets on both sides of the bag. Keep small things on hand
The bag is designed with high quality double zipper. After many times of pull test, 
the pull is smooth and not easy to lose teeth