New Waterproof Backpack for Hiking 38 Liter with Yellow Window

New waterproof backpack for hiking 38 Liter with yellow window,the waterproof dry backpack for hiking 38liters, material 500D PVC, thickness 0.5MM, the whole bag is semi-circular design, there is a sunroof for storing mobile phones on the front side, you can use the mobile phone to keep dry, add a multi-function lock, lock the paddle board, right there is a deflated and inflatable device on the side, which can fill the bag with gas to the maximum extent, temporary life-saving protection, and carry one-piece EVA on the back to reduce the weight and heat during hiking. The 28-liter capacity can meet a day's play.