Specs: Capacity: 22 oz/650 mL Weight: 4 oz/115 g Technology: Push-Pull Blast Valve™ Cap offers quick bursts of fluid Features: Grip-free hydration flask Large cap opening to easily clean and add ice cubes Fully adjustable hand strap with a chafe-free thumbhole enables grip-free running Expandable zippered pocket for running essentials, fits up to iPhone 6