- Enhanced Visibility: The high-sensitivity TPU window allows for easy access to your smartphone, ensuring you can view navigation maps clearly while biking, promoting safety and convenience. - Durable Waterproof Design: Constructed from premium waterproof material, this bike upper tube bag protects your belongings from rain and splashes, keeping your items safe and dry during your rides. - Secure Closure: Features a reliable closed zipper to prevent accidental spills or loss of items, ensuring peace of mind while you focus on your ride. - Versatile Compatibility: Designed to fit a variety of smartphone sizes, making it a practical accessory for any cyclist using GPS for navigation. - Easy Installation: Equipped with loop belts for straightforward attachment to your bike's upper tube, allowing for quick setup and removal when needed. Use Scenarios: 1. Daily Commutes: Perfect for urban cyclists who rely on GPS for navigation, this bag allows you to easily check directions without stopping. 2. Weekend Rides: Ideal for recreational cyclists who want to enjoy scenic routes while keeping their phone secure and accessible. 3. Long-Distance Cycling: Great for touring cyclists who need to stay connected and navigate through unfamiliar areas without risking damage to their devices. Choose this bike upper tube bag for a reliable, functional solution that enhances your cycling experience while keeping your phone safe and easily accessible.