Big Space: The bike bag has enough interior space for long rides and can hold many things like iphone X, battery, energy gel, small tire pump, repair kit, keys, wallet, etc. Perfectly compatible with mobile phones under 7 inches, iPhone XR XS MAX X 8 7 6s 6 plus 5s / Samsung Galaxy s8 s7 note 7, shockproof bicycle front rack bag HIGH SENSITIVITY TOUCH SCREEN: The bike phone case has a high sensitivity TPU film window to help you easily use your phone while riding, a great way to check your activity with a map while riding. (Note: Touch ID does not work with screen overlay) Humanized Design: There are many humanized designs for the bike phone mounting package. DURABLE AND WATERPROOF: The bike top tube bag is made of ultra-light and stylish carbon fiber material with a hermetic double zipper closure to ensure water does not get into the bag. Visor and flashing perfect for rainy or sunny days