1. DESIGN STYLE and COLOR: ClassicIial style, colorful color, the same quality to give you a different feeling. This strap on bike bag is equipped with a variety of colors, 2. MOBILE PHONE POCKET: Through the PVC mobile phone bag to easily view the phone, the normal operation of mobile phones, while riding bike you can also view the time, accessing to map GPS address book or messages etc and other mobile phone APP.This is a waterproof bicycle bag, waterproof polyester protect your phone from small drops of water or rain. Durable polyester material means that it can keep a good shape and will not be deformed when you ride a bike.3. MATERIAL: JOY COLORFUL The bicycle bag use of fabrics can reduce wrinkles, Durable "U" type zipper design,convenient to take ; Non-slip mat provide better sense of balance,make your bike pack more stable and get your phone closed to the window for touch screen functionality.4. HUMANIZED STORAGE DESIGN : underneath of the phone pouch is a separate,fully-lined storage compartment with plenty of room for other necessary items such as wallet,keys,glasses etc Scattered small items. You can very quickly Installation and removal the bike bags.5. AUDIO EXTENSION CABLE: Comes with headphone jack and audio extension cable,at the same time solve the problem of headset too short,let the music more free,let your journey no longer drab.Yes, you can Get a headphone jack and an audio extension cable in this bike bag,the bike bag also suitable for types bike.