·LARGE CAPACITY: ROCKBROS top tube bike bag is large enough to holds your phone, wallet, keys, energy bar, snacks, gloves, spare tube, tire levers and a multi tool. Medium size could holds under 6.0” phones, Large size could hold under 6.5” phones.

·DUAL ZIPPERS: The double zippers on the frame bag is used to sort and store your items, you can can separate your phone and sharp objects in two place to prevent them from being scratched. What’s more, the divider thing in the bag could be removed when not needed.

·WATERPROOF: This bike bag was made with innovative seamless workmanship, TPU coating and waterproof zippers provide dual safe protections for your items.

·SIMPLE AERO DESIGN: Lightweight and portable,top tube bag internal hard board keeps in good shape. Slim size design will not rub your knees to ensure your good riding experience. Fits most of mountain, road bikes.

· Three-point easy installation ensures this bike pouch stays in the top tube place.The surface special material also make it easy to clean after getting mudded.