The QuickSqueeze Plus handheld bottles are 18oz and allow the wearer to hydrate with ease, and comfort and offer storage for phone and valuables. HYDRATE FASTER & EASIER A flask with a contoured bottle and push-pull blast valve nozzle allows you to hydrate faster. MAXIMUM COMFORT The updated design includes a more secure hand strap system, that utilizes Nathan's grip-free technology, and a softer bottle making it easier to squeeze and control the flow of water. Plus a TPU grip keeps the bottle in place despite hand sweat. EXTRA STORAGE TO GO Phone pocket construction to fit most smart phones. Small zipper stash pocket for valuables.