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MTB rain gear for wet trails

Tempo schifoso, atmosfera fantastica

Rain in the forecast? No reason to leave your bike in the garage. The best trails are the wet ones anyway – grippy ground, no clouds of dust, no overcrowded bike parks. The only catch: without the right kit, good vibes can quickly turn into a cold, soaking wet ride home.
This is exactly where the right MTB rain kit comes in. It keeps you dry, warm and flexible – whether it’s a light drizzle in autumn or steady rain on an Alpine cross-country tour. In this article, we’ll show you what really matters when it comes to MTB rain jackets and trousers, and which iXS set-up suits your riding style.

What MTB rain kit do you really need?

For most rides, a clever two-piece system is enough:

  • A waterproof MTB rain jacket – your most important piece of kit in rain, wind and cold
  • A pair of MTB rain trousers – useful in persistent rain, on muddy trails or in winter

If you only ride in the rain occasionally, a good jacket is usually all you need. If you ride regularly in all weathers or are out and about in autumn and winter, you should invest in a complete MTB clothing system – with a jacket and trousers designed to work together.

What makes a good MTB rain jacket?

Not every rain jacket is suitable for cycling. A proper MTB rain jacket has to do more than just keep the water out – it has to move with you when you lean into a bend or stand out of the saddle.

Waterproof seams and zips
Even the best membrane is useless if rain seeps through the seams. High-quality MTB rain jackets feature heat-sealed, waterproof seams and zips with a cover or waterproof coating. This is exactly where the wheat is separated from the chaff.

Helmet-compatible hood
A hood that fits over your helmet isn’t just a nice-to-have feature on MTB rain jackets – it’s a must.

Ventilation and breathability
It sounds paradoxical, but it’s crucial: a good rain jacket must let moisture out from the inside just as effectively as it keeps rain out from the outside. Ventilation openings under the arms or at the back prevent you from getting soaked with sweat inside the jacket.

Fit and freedom of movement
An MTB fit means: longer at the back, close-fitting, but with enough freedom of movement for your riding position. A jacket that’s too loose will flap in the wind, whilst one that’s too tight will restrict your movement whilst pedalling.

Waterproof and breathable – how does that work?

The secret lies in the membrane: it has tiny pores that are smaller than raindrops but larger than water vapour molecules. This means rain from the outside can’t get through, whilst sweat and moisture can escape from the inside. Combined with a DWR (Durable Water Repellent) finish, which causes water to bead up and roll off the surface, you stay dry – both inside and out.

What water column rating does an MTB rain jacket need?
The water column (measured in mm) indicates how much water pressure a material can withstand before it becomes saturated. As a guide:

from 5,000 mm water-repellent, for short showers
from 10,000 mm waterproof, suitable for everyday use on most rides
from 20,000 mm High-performance, for continuous rain and tough conditions

For ambitious MTB use, we recommend at least 10,000 mm; for bikepacking tours or winter rides, feel free to go for a higher rating.

MTB rain trousers to complement your rain jacket

Wet legs cool down just as quickly as a wet upper body. MTB rain trousers are the ideal complement to a jacket in continuous rain, on muddy trails or in winter. Here too, look out for waterproof seams, a bike-specific fit and, ideally, reinforced areas at the knees and seat.

Our kit for all weathers

Not every ride requires the same rain kit. That’s why we at iXS offer different levels in our range:

  • AW-Pro 1.0, 20k water column – our performance range featuring laminated jackets and trousers for maximum protection in persistent rain and harsh conditions
  • AW 1.0 laminated jacket, 10K water column – a versatile all-rounder with a 2.5-layer laminate for reliable rain protection on long rides and in everyday life
  • Carve All-Weather 2.0, 20K water column – also available in an insulated version, perfect for layering in autumn and winter
  • Flow Windbreaker, 5K water column – lightweight, compact and wind-resistant for drier, windy days

All models feature a helmet-compatible hood, MTB fit and well-designed ventilation – for trails where the weather won’t slow you down.

Quick answers: The most important questions about MTB rainwear

Is a rain jacket enough, or do I also need rain trousers?

For occasional rain, a jacket is usually sufficient. In persistent rain, during autumn/winter or on long rides, the full set is worth it.

What water column rating do I need for mountain biking?

At least 10,000 mm for reliable protection; 20,000 mm or more for persistent rain and harsh conditions.

Can I use a normal rain jacket for cycling?

Technically, yes; in terms of comfort, no. Without a MTB-specific fit, a helmet-compatible hood and ventilation, you’ll soon find yourself just as wet from the inside as from the outside.

Windbreaker or rain jacket – which is better?

A windbreaker for dry, windy weather. A rain jacket or hardshell as soon as it really starts to rain.

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