The founders of Soft flask is holding OG SoftFlasks in their hands.

Funky Soft Flasks

We created SoftFlask to shake up hydration. It’s not just a flask — it’s a statement. Designed for movement, made to stand out, and built for performance. Whether you’re chasing PBs or catching sunsets, SoftFlask brings attitude + utility to every run, hike, or everyday hustle.

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What Is a Soft Flask?

A soft flask is a lightweight, flexible water bottle made specifically for runners, hikers, and adventurers. Unlike traditional water bottles, soft flasks collapse as you drink, making them compact, easy to carry, and bounce-free. At SoftFlask, we believe hydration should be both functional and bold, and our flasks are designed to match that energy.

  • A photo of a runner running with a soft flask.

    Light & Bounce-Free

    Soft flasks are designed to reduce bulk. Whether you tuck them into your vest, waistbelt, or hand, the soft construction eliminates sloshing and bouncing during your run.

  • A photo of a soft flask being compressed between 2 hands to show that it is compact.

    Compact

    Once empty, a soft flask can be compressed into a pocket or vest pouch, taking up almost no space.

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  • A photo of a runner spraying a soft flask. To demonstrate the easy flow valve.

    Sip-Easy

    Our flasks feature a high-flow bite valve that makes drinking on the go a breeze. No caps to unscrew, no fuss — just bite, sip, and go.

a runner from the soft flask community holding up a sign at the 2 oceans marathon in 2025

Not Just A Company

At SoftFlask we are not just a company we are part of the community.

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Frequently Asked question - Softflask

FAQs

What is a soft flask used for?

A soft flask is used for easy, compact hydration during running, hiking, cycling, or any outdoor activity. It reduces bulk and makes it simple to carry water without bounce or chafing.

Are soft flasks good for long-distance running?

Yes. Soft flasks are designed for endurance athletes who need reliable hydration without carrying extra weight. They fit perfectly into hydration vests and compress as you drink.

Can I put electrolytes or energy drinks in my soft flask?

Absolutely. Soft flasks are great for carrying electrolytes or sports drinks. Just be sure to rinse them out thoroughly after use.

How do I clean my soft flask?

Use warm water and mild soap after every use. Some runners use bottle brushes or place the flask in warm water with baking soda for a deeper clean.

Are SoftFlask products BPA-free?

Yes! Our flasks are made from BPA-free, food-grade TPU, keeping your hydration safe and clean.

How can I get a discount?

Subscribe to our newsletter to receive an exclusive 10% discount on your first order!