Our game-changing soft flask now holds even more fluid! At 18 ounces, the new ExoDraw features an integrated hand strap for ideal running efficiency, and a rigid ExoSpineTM to maximize comfort as the fluid level decreases.

• 18oz Soft Flask handheld with a spine

• Ergonomic hand strap for grip-free comfort and ideal running efficiency

• Rigid ExoSpineTM for superior hand feel and support

• Great add-on for all Nathan packs

• Hand strap is removable, allowing soft flask to be used in Nathan hydration vest pockets

• Removable neoprene sleeve offers insulation, and a tactile, sweat-free grip

• Expandable stash pocket for small items or nutrition