Material: Polyester Size: 20*10*10cm / 7.80"*3.90"*3.90" Color: As shown in the picture 1. Made of high-quality waterproof material, it effectively protects your mobile phone and other personal belongings from rain, so you can ride off-road without worries. 2. The front beam top tube bag designed for mountain bikes perfectly fits the frame structure, reduces shaking during riding, and improves stability and comfort. 3. The lightweight design with breathable back pad will not feel burdened even if worn for a long time. It is suitable for long-distance riding and outdoor adventures. 4. The multi-functional storage space can easily accommodate mobile phones, energy supplies and repair tools, with clear classification for quick and easy access. 5. The simple and stylish appearance design is compatible with a variety of bicycle styles, and supports night reflective function to improve riding safety. The package includes:1pcs bicycle bag