We have add the zipper pocket and bottle holder pocket on the shoulder strap for the Waterproof Submersible Bakcpack,and it is easy to hold the keys on the zipper pocket and drink water bottle on the pocket, very convenient for take the drink when you are fishing.The front face we add the buckle loop,and suitable for hold the fishing rod.
The inside part,we have make a laptop sleeve and zipper pocket and mesh pocket. You can put the laptop into the pocket,and the phone and wallet into the zipper pocket.
The waterproof submersible backpack also add a detachable cross chest pack,the chest pack is also use the airtight zipper and prevent the water into the bag.