Product Description ROCKBROS Bike Frame Bag Waterproof Triangle Frame Bag 5L/8L LARGE CAPACITY: This bike frame bag are big enough to hold phones, keys, wallet, glasses , power bank, snacks and some emergency tools with some room to spare. WATERPROOF BAG: This triangle bike bag are waterproof to keep your belongings dry in rainy days (Do not soak in the heavy rain). TWO SIZE BAG: We have 5L/8L two size bag for your choice, fits bikepacking, mountain bike, road bike or city touring riding. Cause the size are different, please measure your frame size before purchasing. 5L Capacity (11.8*7.5*11.8 inches) 8L Capacity (15.7*9*15.3 inches) Note: As the bag is larger than the usual frame bag, please measure your frame size then choose the right for you. LARGE SIDE OPENING One zipper on the left for easy to access your belongings. Two size bag 5L/8L fits most bikepacking, mountain bike, road bike or city touring riding. Hard Shell Inside Removable Strap Large Capacity WATERPROOF BAG: This triangle frame bag are made with innovative seamless workmanship, equipped with waterproof zipper make this pouch waterproof, keep your belongings dry in rainy days (Do not soak in the heavy rain). LARGE CAPACITY: ROCKBROS bike frame bag are big enough to hold phones, keys, wallet, glasses , power bank, snacks and some emergency tools with some room to spare. Side zipper pocket are easy to access your items. 5L/8L TWO SIZE BAG: We have two size of triangle bike bag for your choice, 5L?11.8*7.5*11.8inches, about 0.4lbs?and 8L (15.7*9*15.3 inches, about 0.6lbs), fits bikepacking, mountain bike, road bike or city touring riding. As the frame bag is large than usual bag, please measure your frame size before you adding to cart. EAST TO MOUNT ON: Four mounting straps for installing under the bike top tube, stay in place and won’t move even on the rough roads, the slim body?2.4”wide?allows this bag to hide under the frame without worrying about interfering with pedaling.