Ultimate Bike Storage Solution: The EVA Hard Shell Bike Frame Bag offers superior storage for your biking essentials. Designed to fit phones up to 6.8", this bag provides a secure compartment for your Android or iPhone while you're on the go Enhanced Riding : Equipped with a high-sensitivity TPU thin-film window, this bike phone bag lets you effortlessly use your phone while riding. Check your activity or navigate maps without stopping. (Note: Thin film for touch screen function may lead to increased phone temperatures in very hot weather Thoughtful Design for Safety and Convenience: This bike frame bag is packed with user-friendly features. A hidden headphone port lets you take calls or enjoy music while cycling. Reflective bands on both sides ensure your safety during nighttime rides. The double soft rubber zipper heads provide easy access Durable and Waterproof: Crafted from lightweight and stylish carbon fiber material, the bike bag's sealed double zipper closure guarantees water won't seep in, protecting your belongings from rain and splashes Easy Installation, Secure Fit: The bag is secured firmly with 3 sturdy straps: a front magic tape strap, a longer upper strap, and a bottom strap. Even on bumpy terrain, your bike bag stays in place without any wobbling, ensuring a smooth ride