Motorcycle Waterproof Fuel Tank Bag with Transparent Window.1 Precisely selected high-quality oxford cloth materials for maximum durability. 2 Large window design on the bag is convenient to place your mobile phone for watching. 3 Has waterproof function, wear-resistant and don not worry about bad weather when riding. 4 Engine fuel tank bag design, can be put in your fuel tank as well as shoulder bag. 5 Appropriate in size, easy and simple to use, bringing you much convenience. 6 This engine tank bag is suitable for all kinds of motorcycles, more practical.