The easy-squeeze and ergonomically shaped Nathan SpeedDraw Insulated Flask holds 18oz for quick bursts of fluid on-the-go. The integrated 3M reflective fabric offers 360-degree reflectivity in low-light conditions and the double-wall construction keeps fluids cooler 20% longer than other insulated bottles. The soft silicone Push-Pull Cap is easy on the teeth and offers a high-flow rate for easy drinking while clocking in the miles. The SpeedDraw Insulated Flask is BPA-free with odorless technology and is top rack dishwasher safe. Take it along while trekking the country side or out on your favorite run. Quench your thirst with the SpeedDraw Insulated Flask from Nathan. Features: Double-wall construction keeps fluids cooler 20% longer than other insulated bottles Integrated 3M reflective fabric offers 360-degree reflectivity for visibility in low-light conditions Reinforced leak-free, soft-sip, Push-Pull Cap Push-Pull Cap offers quick bursts of fluid on-the-go High-flow push-pull cap Easy-open valve with high-flow rate BPA-free with odorless and tasteless technology Flask and cap are top rack dishwasher safe Easy-squeeze, ergonomic flask Fits Nathan race vests, Peak Pak, Horizon Pak and SpeedDraw handhelds Specification: Capacity: 18oz/535mL