1. Design This bike bag features a waterproof design that provides protection against shortterm, light rain. You can drive with peace of mind knowing that your belongings stay dry and protected even if there are unexpected rain showers while driving. 2.COMPACT LIGHTWEIGHT This bike handlebar bag a small and lightweight design and just the right amount of storage space for your bike essentials. It reduces the strain on your ride and ensures a more comfortable cycling experience. 3.STRONG COMPATIBILITY With its versatile design, this bike front bag is compatible with various bike models, including Brompton folding bikes, mountain bikes and road bikes. No matter what kind of bike you own, you can easily attach and use this bag to enrich your cycling adventures. 4.BUILTIN KEY HOOK With the builtin key hook, you can conveniently hang your keys in the bike handlebar bag. You no longer have to rummage around in your belongings to find your keys. This thoughtful feature ensures easy access to your keys and increases the comfort of your cycling adventures.