What are flasks and soft flasks?

Bottles and soft flasks are essential tools for hydration in running and trail running , especially during long training sessions or competitions. Both allow runners and trail runners to carry water or isotonic drinks comfortably and efficiently, ensuring constant hydration without interrupting the pace of their activity.

Bottles for running and trail

Bottles are rigid containers, usually made of plastic or more advanced materials like Tritan (a durable, BPA-free material), used to transport liquids during exercise. Bottles typically have a capacity ranging from 500 ml to 1 liter , although some trail models can have a larger capacity.

Key features of the drums:

1. Easy access to fluids: Many bottles are designed with a lid that can be easily opened, even while running, allowing you to drink quickly without having to stop. Some have snap-on or valved nozzles for easy sipping without spilling.

2. Durable and Lightweight Materials: The bottles are made of lightweight and durable materials, such as BPA-free plastic, making them easy to transport over long distances.

3. Easy to clean: Unlike other hydration systems, the bottles can be easily disassembled, making them easy to clean, which is essential to prevent the development of bacteria or unpleasant odors.

4. Ergonomic designs: Many drums feature ergonomic shapes and non-slip surfaces to make them easier to hold while moving, preventing them from slipping or becoming uncomfortable.

Advantages of drums:

• Greater fluid capacity compared to other systems, which is useful for long races or training sessions.
• Greater durability due to its rigid structure.
• Easy to carry in backpacks, belts or hydration vests.

Disadvantages:

• They can be bulkier and less flexible than soft flasks.
• They may make more noise or cause discomfort if they are not properly secured.

Soft Flasks for running and trail

Soft flasks are flexible water bottles, usually made of soft, lightweight materials like TPU (thermoplastic polyurethane). As you drink from them, they deflate, making them more compact and easier to handle.

Key features of soft flasks:

1. Flexible design: The main advantage of soft flasks is their flexible design, which adapts to the available space as the contents are consumed, keeping their volume low and making them easy to store.

2. Lightweight and compact: Soft flasks are lighter and less bulky than water bottles, making them more convenient to carry in hydration vests or belts, especially on technical terrain or when looking to minimize weight.

3. Spill-proof spout: Soft flasks often have a valve or spout that prevents spills and makes it easy to access the liquid, allowing you to drink without having to stop or miss a beat.

4. Soft materials: Because they are made of flexible materials, soft flasks are comfortable to carry and don't generate the same noise as rigid bottles, making them more discreet during activities.

Advantages of soft flasks:

• Lighter and more compact than water bottles, ideal for running or trail running on technical terrain.
• They fit the body better thanks to their flexibility, making them comfortable and less invasive.
• Easy to store when not completely full, as they compress as the liquid is consumed.

Disadvantages:

• Smaller capacity than jerry cans (although some models can hold between 500 ml and 1 litre).
• Less long-term durability , as they may be more prone to tearing or damage with constant use, especially on rocky or abrasive terrain.

When to choose flasks or soft flasks?

• Bottles: These are ideal if you need to carry a larger amount of liquid and prefer a more robust container. They're a good option for long runs or training sessions where hydration volume is key and rigidity isn't an issue.

• Soft flasks: These are perfect if you're looking for a lighter, more flexible, and compact option. They're ideal for trail runs where every gram counts and where comfort and a close-fitting fit are essential.

Conclusion

Both bottles and soft flasks are practical and effective options for maintaining hydration while running and trail running . The choice between the two depends on personal preference, type of activity, and hydration needs. Bottles offer greater capacity and durability, while soft flasks offer lightness, flexibility, and comfort. Both have their place depending on the type of training or competition being undertaken.