1L LARGE CAPACITY: The bike water bottle bag has 1L capacity which is large enough to storage water bottles (The diameter of the water bottle is less than 2.75inches) tools, keys and other bike accessories.Whats more, there are also a outer elastic pouch to put your phone.
MUTIPLE STABLE INSTALLATIONS: This bike storage pouch use multi-position installation design which can be installed not only on the handlebar but also on the bike frame and under bike seat. Besides, it come with 5 adjustable straps, and can be used according to the location.Adjustable elastic buckle make it more stable even riding on a bumpy road.
INSULATED AND DURABLE: ROCKBROS Stem Bag made of is made of 210D + PE cotton lining which is insulated to keep your drinks cool in hot summer. Outer of bag is made of 500D film material which is very durable.
ULTRA LIGHTWEIGHT: Only about 50g, our bag is so lightweight.and you will not feel any burden while ridding.It attaches to your bike handlebar and stem allowing for quick and easy access to snacks, water bottle.
HUMANIZED DESIGN: Large area reflective strip design to warning passing people and vehicles and make you ride safer at night, Printed with ROCKBROS LOGO on the water bottle holder bag.

Colour: black
Material: Oxford cloth + PE cotton + aluminum foil
Size: about 16x8cm

Package Contents:
1 * Cycling water bottle bag