HOW TO CHOOSE A HYDROBAG, A WATER BACKPACK FOR TRAIL RUNNING?

In training as in racing, a trail must be run with sufficient water and food. As refreshment points are rare, it is necessary to carry the most essential elements with you. The choice of a water bag for the trail becomes a real headache: weight, volume, morphology... How to choose a hydrobag for trail running for better performance? Ekosport confides all its tips to you!

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Choosing a trail hydrobag: how much volume?

In the world of trail running, races can be categorized into three main segments:

• Short trail: less than 40km
• Long trail: up to 80 km
• Ultra: over 80 km

Each of these events requires the right equipment. It is obvious that an ultra trail requires more equipment than a 30 km race. This is why the choice of a trail backpack must be adapted to the competition you are training for. Moreover, it is very important to use the same equipment during training sessions as during the race, so that there are no unpleasant surprises on the big day.

With regard to volume, Goldilocks was right: "not too little, not too much, just right". Generally, for short to medium trails, a backpack of 5 to 8 litres should be enough. Beyond that, for an ultra trail in particular, you should aim for around 12 litres.

When buying a trail backpack, you should take into account that once the water bag is filled, it will consume part of the bag's volume. Note that some races require a minimum volume of water. Beyond the "pure" volume, it is also the storage space that will make the difference. This can be the number of pockets, their accessibility (to have everything at hand), their location...

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Backpack or hydrobag: which model to choose?

In the trailing world, two main models compete: the hydrobag and the backpack.

The hydrobags look very much like a waistcoat. They are aimed at short or medium distance trail runners. Very light, they are designed in a minimalist spirit. Adapting perfectly to the runner's morphology and made of breathable fabrics, they are very close to the body, thus limiting possible irritations.

After the waistcoat, the trail backpack generally offers larger volumes, allowing you to carry what you need on long runs. A water pocket is easily incorporated and is sometimes provided with the backpack. Very thin, they are "trimmed" at the elbows to allow a nice motion and prevent any chafing or burning.

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The little extras and useful accessories

The volume and comfort of a trail backpack are two primary criteria that will allow you to make an initial selection. Then, it will be the little extras that will make the difference. Among these are:

• The weight
• The number and size of pockets
• The accessibility of the pockets (zip, scratch, snap button...)
• The waterproofness of the pockets (to protect one's smartphone for example)
• The adjustment (adjustment of the straps, chest straps...)
• Nets or elastics to slip in gels or other treats within easy reach
• The magnetic bib holder if you are running in competition
• A pole holder system
• Flat or welded seams to limit chafing

As you compare the different models of trail hydrobag, you may find that not everything is included. Some manufacturers slip in the water bags, for others you will have to buy them as extras. In this case, it's ideal to opt for a water bag from the same brand so that the shape fits perfectly into the space available in the trail hydro backpack. In addition to one's trail hydrobag, one could also equip oneself with water flasks. Easy to access, they are very practical for short distances. For longer rides, they allow you to vary the pleasures and flavours! For example, you can fill one or more water flasks with isotonic drinks, and keep pure water in the water bag.

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To each morphology, it's trail water bag

To accommodate different body shapes, brands offer several sizes and models of trail hydrobags. The most important thing is to find the bag that best fits the shape of your back. Also, it should not go too low but stop at the lumbar level.

On the other hand, manufacturers also adapt their products by offering two versions: one female, one male. The men's backpacks offer a longer length and wider shoulder straps. The women's version will be shorter in the back, with narrower straps to avoid creating chest irritation.

Practical, light, comfortable: the ideal bag would gather all your criteria, all within your budget. Thanks to our tips and tricks, it will be easier to make an initial sorting to determine the type of trail backpack that you need. Its volume, comfort and ease of use will contribute to your running pleasure and better performance.