Rhinowalk Bike Top Tube Bag, Bicycle Frame Bag, Waterproof Bike Bag, Professional Bike Accessory for Mountain Bikes, Road Bikes (Upgraded Version), 2.1L, White

["Size: The bike triangle bag measures 17.3 x 3.9 x 2.2 inches and has a capacity of 2.1 liters", "High-quality Fabric: This bicycle frame bag is made of waterproof nylon fabric (nylon is lightweight and wear-resistant) with a diamond mesh structure crossing and overlapping polyester yarns (the diamond mesh yarns overlap to increase overall tear resistance). The bottom layer is made of polyester fiber fabric that can be bonded together with melt adhesive", "Zipper: The waterproof YKK zipper is easier to open and close, providing better waterproofing and durability. The double-sided zipper pocket design allows for free space adjustment inside the bag, making it easier to collect items. The custom-made large zipper is also easy to operate with winter full-finger gloves", "Attachment Design: There is an elastic rope at the bottom of the bag that can be used to securely fasten small items. The inside of the bag is equipped with a fixed position for a portable air pump to avoid mutual friction", "Water Bottle Concealment Design: Installation on a frame larger than 50 meters hardly affects access to the water bottle (620 ml)"]