The Nathan Sports QuickSqueeze Lite Handheld 18 oz Flask is designed to keep runners hydrated without slowing them down. Its ergonomic shape fits naturally in your hand and squeezes easily for quick hydration while on the move. A fully adjustable hand strap and no slip insert create a comfortable grip free carry so you can focus on your stride instead of holding your bottle. The high flow Push Pull Blast Valve(TM) cap delivers fast hydration with quick rebound for efficient drinking during activity. Reflective detailing and convenient stash pockets add extra function making this handheld flask a reliable hydration solution for running training and outdoor workouts.