360° ROTATION PHONE HOLDER: The stretchy phone holder silicone pad designed on the top of bike front frame bag allows you have your phone in either landscape or portrait, also effectively avoid the trouble of overheat or collect moisture due to plastic cover over your phone in summer1.5L LARGE CAPACITY: Plenty of storage room on either side fits most essentials like energy gel, keys, wallet, inner tube, gloves, mini pump, repair bike tool, cable lock, power bank, etc. The upgraded double-sided bag can carry more items and easy for classified storageWIDE COMPATIBILITY: The bike cell phone holder bag perfect compatible with Android/iPhone smartphone below 6.7 inches, such as iPhone X XS Max XR 8 7 6s 6 plus 5s/Samsung Galaxy s8 s7 note 7, Face ID and Touch ID compatible, allowing full-screen operation and easy access to all phone buttons and portsDURABLE & WATERPROOF: ROCKBROS bicycle bag made of high quality polyester material with sealed zippers closure, not easy to deform, and the included green rain cover can protect your items on a rainy day & extreme environmentsHUMANIZATION DESIGN: The bike top tube phone bag have reflective tapes on both sides of bike bags to keep your night ride safety; Three hook&loop; straps installation system is easy to install and grip your bike frame securely