Nathan Pinnacle 18oz Insulated Soft Flask

Grip-free comfort. Chill hydration. No distractions.
The Nathan Pinnacle 18oz Insulated Soft Flask is built for endurance junkies who move fast and pack light. Whether you're chasing a new PR on the trails or powering through a marathon, this handheld delivers hydration without the hassle.

Featuring Nathan's signature Exo-Draw technology, it combines a minimalist, grip-free hand strap with a chill-boosting insulated flask to keep your fluids colder—longer. An expandable stash pocket holds keys or gels so you can focus on the miles ahead, not what's bouncing around in your hands.

Key Features:

• 18oz / 535mL BPA-free insulated soft flask with bite valve

• ExoSpine™ design for structure and comfort

• Breathable, ergonomic mesh strap for grip-free carry

• Collapsible flask design shrinks as you sip

• Expandable stash pocket for keys, gels, or essentials

• Weighs just 3.35 oz (95 g) with flask

Ideal For:

Trail runners, marathoners, hikers, and anyone who wants to hydrate without slowing down.

Why We Love It:

It's light, low-profile, and smartly designed to feel like an extension of your hand—not a bottle you're lugging around.