* The TPU material and the air-tight zipper make backpack 100% waterproofing.

* The main compartment protects a laptop and larger items, while the front pocket allows quick access to smaller items, like your phone. 

 *The air valve blows air into the backpack to keep it afloat on the water.

*  Elastic cords and fasteners that can hold two trekking sticks or fishing rods.

* Reflective zipper strip remind your visible for night time walking or riding.

* The ergonomic air flow back panel and shockproof shoulder strap and heavy duty waist belt provide ultimate comfort by talking weight off your back and relieves added pressure to help support your load.