1. Large space: The bicycle bag has enough internal space for long-term riding, and can hold a lot of things such as mobile phones, chargers, power banks, USB data cables, bicycle repair tools, and small tire pumps. Perfectly compatible with mobile phones under 7.0 inches 2. Sensitive touch screen and hidden headphone jack: This bicycle saddle bag can hold your phone, made of TPU material, you can easily play with your phone or check your activity while riding. Hidden headphone jack lets you take calls or enjoy music freely while you ride 3. Practical and user-friendly design: The top adopts a shading design to help you watch your phone screen clearly. Where the phone is stored is secured with Velcro, making it quicker to pick up. Waterproof zipper design, not easy to rust, more durable. 4. Waterproof and Durable: This bike bag provides excellent waterproof performance. Seamless waterproof double zipper design perfectly protects your phone in rainy days and extreme environments. The road bag is made of PU laminated EVA material, which is sturdy and not easy to deform. 5.Easy to install and remove: The bicycle saddle bag comes with 3 straps, which are strong enough to be attached to the bike. The bike bag doesn't move even when riding on rough roads. Velcro design can be easily installed and removed.