Slim Expandable Laptop Backpack

Backpack is made of waterproof oxford fabric material. One separate compartment which velvet lining to take care of the laptop well. External USB port with set-in charging cable offers convenient connection your cellphone and other electronic devices. The backpack with two modes that ultra-slim style for light travel and daily commute, 200% expandability for more load when travel and out home, switch between the both is easy as can be.