* The TPU material andIPX-7 airtight zipper make the 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 blow airs into backpack to keep it afloat on the water.

* Two sides loops and straps are to keep fishing rob or trekking sticks and other fishing essentials.