Nathan 590ml soft flask

NATHAN 590ml Soft Flask: Effortless, Slosh-Free Hydration for Every Athlete

Elevate your performance and redefine your hydration strategy with the NATHAN 590ml Soft Flask. Designed for runners, hikers, and endurance athletes who demand efficiency and comfort, this flask is the ultimate solution for carrying water or electrolytes on the move. Say goodbye to rigid, bouncing bottles and embrace the freedom of a lightweight, flexible hydration system that adapts to you.

The standout feature of this soft flask is its innovative collapsible design. As you drink, the flask shrinks in volume, pressing the remaining liquid together. This simple yet revolutionary function completely eliminates the distracting and uncomfortable sloshing of water that plagues traditional hard bottles. The result is a quieter, more stable, and more comfortable experience, allowing you to maintain your focus and rhythm, whether you´re tackling a technical trail or pushing for a new personal best on the road. When empty, the flask packs down to a minimal size, easily stowing away in a pocket without adding bulk or weight.

Hydration should be quick and effortless, not a clumsy interruption. The NATHAN 590ml Soft Flask is engineered with a high-flow, leak-proof bite valve that delivers a steady stream of fluid on demand. With the bite top, you can make sure that you have control of where your water or liquids go - straight into your mouth and not dripping out the top. This intuitive design allows for easy, one-handed drinking, so you never have to break your stride or fumble with caps and lids. It’s the perfect system for quick sips during intense activity, ensuring you stay properly hydrated from the first mile to the last.

Refilling at aid stations or before you head out is a breeze thanks to the flask´s wide-mouth opening. This generous design makes it incredibly easy to pour in liquids without spills and provides ample room for adding ice cubes or your favorite electrolyte powders. Cleaning is just as simple, ensuring your flask stays fresh and ready for your next adventure.

Designed for seamless integration into your existing gear, this soft flask is the perfect companion for your NATHAN setup.
- Works great with ALL NATHAN hydration vests.

Its classic shape and flexible body allow it to slide effortlessly into the front pockets of any NATHAN hydration vest, providing convenient, at-your-fingertips access to fluids. Upgrade your run, hike, or race with the NATHAN 590ml Soft Flask and experience the pinnacle of lightweight, comfortable, and efficient hydration