At only 54g the Pro Race Bidon is as light as it gets. But, that's not the only thing it has going for it, it features an ergonomic cap, which is soft, odourless and will not alter the taste of the liquid, it also increases liquid flow making it easier to refuel on the move.
The special grippy material on the bottle body makes it safer and easier to use on rough roads or fast descents, and the opening is 20% bigger than standard bottles, so filling up with liquids or powdered supplements is much easier.