Stay hydrated on your longest runs or hikes with the Nathan Pinnacle 18oz Soft Flask. Featuring advanced ExoDraw soft flask technology, this insulated 18oz handheld keeps fluids cooler for longer while offering a grip-free, ergonomic mesh strap for ultimate comfort. The expandable 3D pocket stores keys, gels, and other essentials, while the soft flask collapses as you hydrate for easy handling and storage. Perfect for marathons, trail runs, climbs, or daily training, this flask combines convenience, comfort, and performance in one compact design.

Why You’ll Love It:

• 18oz BPA-free insulated soft flask keeps fluids cooler longer
• Ergonomic, grip-free mesh hand strap for comfort during activity
• Expandable 3D pocket stores keys, gels, or small essentials
• Soft flask collapses as you hydrate for easy storage
• ExoSpine™ interior creates superior hand feel and support