1. This bike bag is equipped with 1.5L storage space and provides enough storage space for your daily riding essentials, you can put your phone, wallet, keys, snacks, driving tools, etc., the built in breathable phone strap and sturdy Velcro can hold your phone firmly in place, providing stability and convenience for your trip. 2.Thoughtful and Practical Design This bike rack bag is a combination of a phone holder and a bike bag. You can conveniently use the navigation map and answer phone calls while driving. The bike bag also has a hidden headphone hole, so you can listen to music or make calls while driving and enjoy a relaxed time. The unique 3D sun visor reduces the glare effect of the screen, providing a better driving experience. 3. and Materials The bike bag is made of environmentally friendly EVA material and hard TPU, which is pressure and fall resistant, not easily deformed, very durable and easy to clean, and the sealing rubber double zipper and seamless membrane connection technology can effectively reduce the ingress of rainwater, greatly improve the waterproofing and protect the contents of the bag well. 4.STABILITY: Three Velcro attachments attach quickly, easily and securely to the top handlebars of the bike. The bicycle bag is made of hard EVA material on the side, which is very durable and easy to clean and effectively protects the phone and other items in the bag. Reflective strips on both sides of the bag can make you r when driving at night.