The Adventure Race Top Tube Bag has been designed as a durable and lightweight bag for ultra-distance riding, audaxes, and races. It uses X21, a technical waterproof fabric, 6oz nylon lining, YKK zips and reflective detailing that adds visibility during night time riding. The bag is held firmly in place with a three-point Hypalon fitting. A new universal headset fitting and internal plastic structure keeps the bag upright, stable and secure, and is designed to work with all headsets, including bikes with a low stack height. An adjustable frame fitting means the bag will work with most frame bags, and all Restrap Frame Bags.