In the world of trail running, your choice of carrying system is a central question. Should you go for a trail running belt or a hydration pack? Both solutions have their advantages and their limits, and which one makes sense depends above all on the distance, the elevation gain, the weather conditions and your fuelling strategy. Here is a complete comparison to help you choose the right equipment for your outings.

Why how you carry your kit is essential in trail running

Unlike road running, trail running means carrying more equipment: water, gels, bars, a waterproof jacket, a survival blanket, sometimes even poles. Choosing well between a belt and a pack determines your comfort, your performance and your safety. A carrying solution that is not suited to the job can lead to discomfort, poor hydration management or unpleasant chafing over the long haul.

The advantages of the trail running belt

The belt is a firm favourite for its lightness and its simplicity. Compact and ergonomic, it lets you carry the essentials without weighing yourself down. COMPRESSPORT offers several models to suit: the Free Belt for road running and fast sessions, the Free Belt Pro for short as well as long trail running, and the Race Belt designed specifically to hold a race bib.

  • Lightness: ideal for running unencumbered, carrying only gels, your phone and a small flask.
  • Stability: properly adjusted, it stays in place even on technical terrain.
  • Accessibility: everything is within reach without having to take off your pack.
  • Versatility: the Free Belt Pro can also complement a pack to increase total carrying capacity.

The limits of the trail running belt

  • Limited capacity: there is no way to carry several litres of water or a large amount of mandatory gear.
  • Less suited to long distances in full self-sufficiency.
  • Requires a perfect fit to avoid bounce.

The advantages of the hydration pack

The hydration pack remains the reference solution for long trail runs and ultras. Designed to carry large volumes, it offers better weight distribution and a large storage capacity.

  • Large capacity: lets you carry a waterproof jacket, a water reserve, food and mandatory gear.
  • Optimised hydration: thanks to the bladder or the flask slots.
  • Versatility: some models can be adapted to the demands of the race.
  • Balanced distribution: the weight is better spread between the front and the back of the body.

The limits of the hydration pack

  • Heavier and bulkier than a belt.
  • Less accessible when you need to quickly grab a gel or an item.
  • Can cause chafing if poorly adjusted.

When to use a belt and when to prefer a pack?

  • Short outings (under 2h): the Free Belt is ideal for carrying the essentials without getting in your way.
  • Short and medium trail runs (up to 5h): the Free Belt Pro is a versatile solution, on its own or alongside a small hydration pack.
  • Ultra-trails and races with mandatory gear: the pack becomes essential, possibly with a Free Belt Pro to spread the load and get quick access to certain accessories.
  • Official races: the Race Belt is perfect for carrying your bib without damaging your clothing.

What runners say

Regular runners appreciate the lightness and the simplicity of the Free Belt on the road and on short trail runs. The Free Belt Pro wins people over with its versatility, able to replace a pack on certain formats or to complement a pack during ultras. As for the hydration pack, it remains essential as soon as self-sufficiency becomes a major issue. Discover the full range of COMPRESSPORT belts and find the solution that matches your practice.

Think about your complete kit

Belt or pack, carrying your gear is only one part of your complete kit. Pair it with the right trail running socks, a technical t-shirt, a waterproof jacket and comfortable trail running clothing. Triathletes will also find solutions to suit them in the triathlon collection. All of these choices contribute to performance and comfort, in racing as in training.

Summary: belt or pack, each has its use

The trail running belt is ideal for fast sessions and short to medium distances, thanks to its lightness and its practicality. The Free Belt Pro stands out for its versatility, able to complement a pack or to replace one depending on how long the effort lasts. The hydration pack, for its part, remains essential for ultras or any outing calling for extended self-sufficiency. Choosing the right carrying system means running more comfortably, more efficiently and with greater peace of mind.

🔎 To go further: explore the full range of COMPRESSPORT belts and discover the solutions suited to every type of outing.