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Näak is your on-course nutrition at UTMB World Series.

Preserve your playground.

Every purchase you make creates positive change.

They inspire us. They will inspire you.

The ultimate guide to reach your ultra endurance goals.

Fuel your mind with nutrition tips and more.

Discover delicious and nutritious recipes.

They are writing the history of our sport.

They aim to reach the summits.

The champions of tomorrow.

Community, Sharing, Passion.

They inspire us. They will inspire you.

Get your custom nutrition & hydration plan.

The ultimate guide to reach your ultra endurance goals.

Fuel your mind with nutrition tips and more.

Discover delicious and nutritious recipes.

Gear & Accessories Hydrapak™ Soft Flask 500 ml

Simpler, faster, and cleaner, this lightweight 500 ml collapsible Drink Mixes flask with a large opening allows for instant and durable nutrition on your most challenging adventures.

Overview

Simply fill it with a Drink Mix, give it a squeeze, and you're prepared to conquer anything that comes your way.

Features

    Customer Reviews

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    Great flask

    Perfect for the Naak satchels, really enjoy using this

    Why you'll love it

    Soft nozzle: Wide opening silicone nozzle lets you fill easily, holds 1 Single Serve Drink Mix.

    Easy open cap: Protects the bite nozzle from dirt and debris.

    Durable softflask: Made of abrasion resistant TPU & RF welded seams for superior durability and elasticity

    Comfortable fit: Soft material conforms to most hydration vests, belts, or pack pockets

    When to use graph

    Add 2 scoops of Drink Mix to the Flask to get 250 calories.

    45% reduction in plastic waste per serving.

    Refill your single-serve bags with the eco-recharge 720g bag, saving 1.8g of plastic per portion compared to using several single-serve bags.

    Used by ultra distance athletes

    All our products are developed hand in hand with elite athletes through the Näak Lab. Our mission is to build the most efficient and sustainable fuel for ultra distance sports. Today, thousands of professional and amateur athletes around the world depend on Näak to explore new playgrounds and redefine what is physically possible.

    Backed by Science

    Näak Ultra Energy™ science was developed to meet the specific needs of ultra distance athletes. The idea is simple: the ingestion of a few macronutrients such as carbohydrates and electrolytes is not enough to fuel ultra distances. After a few hours of effort, you need a complete nutrition approach to go farther.

    Commonly Asked Questions

    What is Näak’s mission?

    Our mission is to help endurance athletes unlock their full potential while preserving their playground.
    We’re doing so by building the most efficient and sustainable fuel for endurance athletes. It's all based on one radical idea. Long lasting energy powered by high quality and sustainable ingredients. Or, as we call it, Ultra Energy™.

    What does Näak stand for?

    Näak stands for Nutrition for Adventurous Athletes who run Kilometers.

    Where can you buy Näak products?

    In your local sport store: use our Store Locator to find where Näak products are sold near you. We recommend calling before you go to make sure they have the product you look for in stock.
    Online: You can buy Näak products on our website. We ship internationally.

    Share your Näak experience @naakbars and get a chance to be featured.

    Customer Reviews

    Based on 1 review
    100%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    S
    Serge
    Great flask

    Perfect for the Naak satchels, really enjoy using this

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