- Large capacity The front frame bag for your bike is ideal for long journeys. It fits most essentials such as small bike pumps, cable locks, repair tools, spare tubes and more, and can hold keys, wallets, snacks and batteries. - Applies to many bikes The 3-layer Velcro fastener bag is common to most bicycles and is securely attached to the top tube thanks to three strong Velcro straps. - Reliability and usability The waterproof bicycle bag fits 4.7 to 6.5 inch mobile phones. The lightweight baffle design blocks the light source, increases the clarity of your phone in bright sun, and allows you to operate it without removing the phone. It has a front frame pocket for your bicycle phone with a clear TPU film window for easy touch while cycling. - High-quality materials The bag has a headphone jack design so you can listen to music while riding. It is waterproof to fully protect your phone in rainy days and extreme environments. Made with EVA and PU fabric materials.