Features:

1. Brand patent innovative zipper, Suspended design zipper, reduce friction, longer life time, lifetime warranty zipper

2.With Comfortable and Wide Shoulder Straps with plentiful sponge padding, luggage bandage and chest buckle

3. Expansion function. Can expand by 7cm. Only the black and gray versions have this feature.

4.Made of Splash proof 300D Oxford, Water resistant material keeps items safe from drizzle/wet

5.With usb charging port, could be charged even on the go