The Ultimate Direction Body Bottle Plus is a collapsable, lightweight waterbottle. It has a capactiy of 18oz/ 535ml that fits into all of the Ultimate Direction vests. They are super comfortable- where the soft flask conforms to your body, which reduces sloshing, bouncing, and rubbing.
The lid now has a lock option and a much bigger opening, allowing you to easily add ice cubes or powdered energy mix.