The most functional and comfortable insulated Flask ever! Nathan's new Ergological™ shaped SpeedDraw™ Flask with Fire & Ice™ technology allows for the most natural grip possible and easy-squeeze access to fluids.
18 oz / 535 mL double-wall insulated and hi-viz reflective SpeedDraw Flask with Race Cap
Fully adjustable hand strap with thumbhole enables grip-free running
Large, expandable, zippered pocket carries phone, keys, ID and other running essentials