?Powerful Storage - The triangle frame Bag provides 1.5L capacity, durable big zipper closure for easy reach. It can hold most small essentials like keys, smart phone, wallet, earphones, cycling glasses, drinks cans, mini bike pump, cable lock and more ?Strap-on Install & Fits Front Tube Bikes - This cycling triangle bag can be easily fixed securely with 3 adjustable velcro straps(L x W: 8.5 x 1.3 inch), can easily fasten on the tube, stable and firm. Suitable for the most mountain, road and commute bike, BUT NOT fits for small/ usual women bicycle/child bike ?Slim & Lightweight - The triangle bag(size: 10.6 x 4.6 x 2.3 in, weight: 4.2oz/122g) would not rub against your legs while riding, effectively help reduce wind resistance and prevent leg impact during riding. Ideal for your long riding trip ?Superior Material & Waterproof - Made of upgraded 600D polyester fiber, strong and durable duty, water resistant and durable triangle,easy to clean the surface just wipe by hands. Portable and convenient, makes you relax ?100% Satisfaction - This front tube mountain bike bag is suitable for most mountain, road and commute bike cycling. If any issues at all, please feel free to contact us, your satisfaction is always our priority, we will do our best to resolve the issues