[material] thick wear-resistant canvas
[size] 37*31*13cm
[ roduct description] This bag has a main pocket， the space is large enough， there is a small pocket and zipper inside the computer， and thicker sponge pad， more effective protection of the computer. There are two layers of lateral side bag， can put books and other bulk material， sucked by the hasp cover， can better protect the privacy and security. On both sides of the pocket like pocket， a novel design， reasonable space. Behind the thick sponge pad， back up more comfortable.