Trail Siero 2026
Mandatory gear
The Trail Siero organisation requires you to carry this gear during the race. Non-compliance may result in time penalties or disqualification. Always check the official rules before the race, as the list may change between editions.
Mandatory gear — Trail Siero
| Item | Notes | Qty | Distances |
|---|---|---|---|
✓ liquid container | Recommended at the aid stations | 1 | All distances |
| Fully charged | 1 | All distances | |
✓ trail shoes | — | 1 | All distances |
Which vest do you need for Trail Siero?
With 25 km on the longest distance and this mandatory gear list, you need a 5 L vest. These are our picks:
💡Tip: check your gear several days before the race. Never use anything new on race day.
Recommended products to meet mandatory gear requirements
MARLOAR
MandatoryMARLOAR Soft Flask 500 ml (pack de 2)
Two-pack of 500 ml BPA-free silicone soft flasks for running, trail, cycling and hiking. Wide mouth for fast refills, they collapse as you drink, and the per-bottle price is a fraction of the branded ones, so you can rotate and replace them without a second thought.
Strengths
- +Two units for the price of one branded flask
- +500 ml: cover a long run without refilling as often
- +BPA-free silicone, dishwasher safe
Watch out for
- −Silicone is heavier and tastes slightly more than branded TPU flasks
- −Lower valve flow: a bit harder to drink on a climb
Generic
MandatoryCinturón de running con porta móvil
Lightweight running belt with phone compartment and transparent touchscreen window. Quick access to GPS and track without stopping. Adjustable, breathable and bounce-free. Ideal for trail running and hiking.
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Salomon
Salomon Speedcross 6
Salomon's most versatile trail shoe, ideal for technical terrain and mud. Exceptional grip with Contagrip sole and EnergyCell+ cushioning.
Strengths
- +Agarre excepcional en barro y terreno técnico
- +Protección de puntera reforzada
- +Sistema Quicklace cómodo y rápido
- +Drenaje de agua eficiente
Watch out for
- −Durabilidad media en asfalto
- −Horma algo estrecha para pies anchos
Asics
Asics Gel-Trabuco 14 GTX
A best-selling beginner trail shoe: GEL cushioning, good stability and a waterproof GORE-TEX membrane. Versatile and reliable for training on mixed terrain in any weather.
Strengths
- +Comfortable GEL cushioning for beginners
- +Waterproof GORE-TEX membrane
- +Very good value for money
Watch out for
- −Moderate lugs, just adequate in deep mud
- −The membrane reduces breathability in the heat
Buying guides to choose well
Want to know more? Read our complete guide to mandatory gear for ultra trail.
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