Features: 1. Brand patent innovative zipper, Suspended design zipper, reduce friction, longer life time 2. Newest Anti-wrinkle high quality oxford material, wear-resistant scratch-resistant 3. Anti-Freeze and Waterproof, with environmentally friendly fabric, no peculiar smell 4. Unimaginable large capacity , with separate shockproof compartment, fit 12-15.6inch laptop 6. Other convenient details design, such as side zipper pocker, back Anti-theft hidden zipper pocket design