A bigger version of the original, the Body Bottle Plus carries more life-source and has a wider screw-top to make it easier to add ice cubes or powders. It has a squared-off base which allows it to hold 17oz (500ml) of hydration concoction while still fitting in all UD vests. It’s still a soft flask which doesn’t slosh around and gets more compact as you drink. The cap even has a thoughtful lock switch so it doesn’t leak until you want it to. The Body Bottle Plus all adds up.