new men backpack computer bag fit for 17.3 inch lapbackpack multifunctional waterproof anti-theft business travel backpacks luggage travels

the third generation design upgrade
stereoscopic hard shell backpack impact resistance
size: length*width*height 32*19*49cm, accommodate computer size: 17.3 inches computer protective compartment, water-resistant, dry and wet separation bag
multi-compartment storage, waterproof fabric, hard shell anti-collision, computer protective pad multiple composites high temperature integrated molding
the backpack uses hard shell material, it is made of pc and abs mixed in a special ratio. the three-layer structure is integrally formed by high temperatures. let the backpack maintain the appearance and texture while also achieving the effect of being wear-resistant and anti-collision. soft eva material attached inside the backpack better protects the contents of the backpack. (will does not deform even at a low temperature of 40 degrees).syi