Otso Big Cap-250ml soft flask

OTSO Big Cap-250ml Soft Flask: Lightweight & Compact Hydration

Stay perfectly hydrated on every adventure with the OTSO Big Cap-250ml Soft Flask. Designed for athletes who demand efficiency, reliability, and minimalist gear, this compact flask is the ultimate solution for carrying essential fluids without the bulk or weight of traditional bottles. It´s an indispensable tool for anyone serious about their performance in endurance sports.

Experience Unmatched Convenience with the Big Cap Design

The signature "Big Cap" sets this soft flask apart, offering a wider opening that makes refilling at aid stations, from streams, or at home a quick, easy, and spill-free process. This thoughtful design element also simplifies cleaning, allowing you to easily access the interior to ensure your flask stays fresh and ready for every training session and race.

Effortless Hydration, Zero Interruption

Engineered for performance, the OTSO soft flask allows you to drink on the move without breaking your stride. The intuitive system ensures you can access your fluids instantly, helping you maintain optimal hydration levels with minimal effort so you can stay focused on the path ahead. As you drink, the flask compresses, minimizing water sloshing and noise, while also reducing its size to save precious space in your running vest, belt, or pack.

Ultralight and Infinitely Packable

This is hydration that moves with you. The flexible material allows the flask to conform to the shape of your pocket or pack for a comfortable, bounce-free fit. When it’s empty, it becomes incredibly small, allowing you to tuck it away without a second thought. It is the perfect choice for long-distance efforts where every gram and inch of space counts.

Weighing less than 50 g, the OTSO Soft Flask is foldable and has a capacity of up to 250 ml.

It complies with all safety regulations for the consumption of liquids stored inside.

Very easy to use, it is equipped with a bite valve.

A simple suction guarantees a sufficient liquid supply every time you want to drink.

Being foldable, it takes up very little space and can therefore be stored anywhere in our sports equipment.

Durable and leak-proof thanks to its valve system.

It is ideal for outdoor sports:

trail running, running, climbing, trekking, skimo, mountain biking.

CLEANING AND CARE OF SOFT FLASKS AND CUPS

Soft flasks and cups must be cleaned after each use, with water and soap, not just rinsed, especially if nutrition products containing artificial colorants are used.

Once washed, it is highly recommended to put them in the freezer until their next use, which eliminates possible bacteria and organic residues, as well as odors