Craving cool water during your workout? Run with the Nathan ExoDraw 2.0 18oz. The ExoDraw 2.0 wraps your water in insulation to keep it cooler for longer. Nathan built the soft flask to hold 18 oz of water to keep you hydrated during your run, and the removable sleeve means you can use it with a Nathan hydration vest, too. With a convenient hand strap that makes it easier to hold on, the Nathan ExoDraw 2.0 gives you a simple way to carry your water on your run.