Skip to content
Contact us
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F
  • Lightweight Trousers for Women Women FAST 3 F

FAST 3F EVO - Women

Ultra-lightweight and stretch Trousers

94,90 €

127 reviews

Ultra-light

Water-repellent

Edge/crampon protector

280 g (size S)

Black

Delivered from Tue 17 Nov.

Free returns within 30 days

Available in several versions

Free repairs for life

By La Réparerie, our repair service.

Complete your outfit

Who did we design it for?

For fast hikers and trail runners who move between disciplines without changing trousers, from technical trails to a running session.

What is the fit?

Close-fitting cut. They run slightly large: if you’re between sizes, choose the smaller size.

How comfortable is it?

Ultra-lightweight and stretchy, with an elasticated waistband and belt loops. Reviews describe them as light, flexible and comfortable to wear.

What makes it different?

Our CIMAFLEX technology: stretch fabric that moves with every bend, with articulated, pre-shaped knees and Kevlar® reinforcements at the lower legs.

Its performance

Lightweight

280g (S)

Waterproofing

Water-repellent DWR

Wind protection

Moderate wind, 40 to 60 km/h

Ideal for

Hiking

Nordic walking

Trail running

Fast hiking

climbing

The trousers that don’t pull on the climbs

Steep climbs, bursts of speed on singletrack, quick transitions between disciplines. Every stride puts the fabric to work; every bend tests the cut. Trousers that pull or cling break your rhythm.

These trousers are designed to go unnoticed when you’re pushing hard. Their stretch construction moves with you without restricting your knees. They keep you moving smoothly on technical terrain and easy-going paths alike.

Because in the mountains and on the trail, the best kit is the kit you forget you’re wearing. And performance starts with freedom of movement.

Key features

Pre-shaped articulated knees

- Moves with you as you bend on hikes.

Lower leg reinforcements

- Protects the fabric against abrasion from stones and vegetation.

Interior silicone gripper bands

- Perfect hold over shoes without riding up.

Zipped back pocket

- Quick access to your phone or small items.

Adjustable elastic belt

– Precise fit with no pressure on the stomach.

CIMAFLEX Technology

Freedom of movement and light protection for outdoor activities.

  • Comfortable stretch: stretch fabric that follows natural movements without restriction.
  • Water-repellent protection: limits the penetration of light moisture and splashes.
  • Easy to wear: comfortable material that promotes ease of movement during outdoor activities.

CIMAFLEX technology prioritises durable materials to ensure long-lasting performance and shape retention over time.

Details

Specifications

Weight

280g (S)

Brand

Cimalp

Fabrics

Main fabric: 88% Polyester, 12% elastane; secondary fabric: 96% Polyester, 4% elastane

Wind resistance

Moderate wind, 40 to 60 km/h

Waterproofing

DWR water-repellent treatment

Size type

  • Women's Bottoms

Traceability

Product sheet on environmental qualities and characteristics
Manufacturing: China
Weaving/Knitting: China
Dyeing/Printing: China
Releases plastic microfibres into the environment when washed

Complementary products

Women's Windproof Jackets WIND F
  • Women's Windproof Jackets WIND F
trail socks and arm warmers RUN MID
  • trail socks and arm warmers RUN MID
Women's trail running T-shirts BOREON LS F
  • Women's trail running T-shirts BOREON LS F
Women's fleece jackets BERNAUDE 2 F
  • Women's fleece jackets BERNAUDE 2 F

+1

Reviews

4.9
Based on 127 reviews
5
93%
4
3%
3
2%
2
0%
1
0%
Customers recommend the usual size
Comfort
Breathability

In summary This content is written by AI

Customers love its lightness, comfort and fit, which they often describe as perfect or impeccable. They happily wear it for hiking, Nordic walking, climbing and cycling, appreciating the freedom of movement, even with a base layer. Easy to fold, it slips into a backpack without taking up space. Several customers also praise its quality and excellent technical performance for the price, while one customer even ordered it in a second colour. It can, however, come up slightly large or long, so check the size and leg length carefully before choosing.

Charlotte.R
Verified customer
Ordered size S Ordered color Vert
Translated review
12/06/2024

The color is true to the photograph, the size is perfect, and it's very comfortable. These pants allow for easy movement without being restricted by fabric creases, which happened to me with another pair of pants from a different brand!

julie.b
Verified customer
Ordered size L Ordered color Vert
Translated review
07/09/2023

Fits perfectly. These pants are really flexible and comfortable to wear. I use them for climbing, and they keep my legs covered without getting too hot! I bought them in green, and the color is really nice (true to the picture).

Delphine.S
Verified customer
Ordered size S Ordered color Kaki
Translated review
20/01/2026

Really very light and comfortable, and a perfect fit even for me, with my curvy figure. Thank you so much for the quality of your products.

Cornelia ..
Verified customer
Ordered size M Ordered color Noir
Translated review
07/06/2025

Extremely comfortable, allows for good movement while climbing, hiking, and cycling.

Michela.F
Verified customer
Ordered size L Ordered color Noir
Translated review
08/04/2025

Excellent trousers, very light and stretchy. Correct size. Only remark: the leg pockets and the back one are good, but at least one zipped pocket high on the hip is needed.

Explore the category Lightweight Trousers for Women

Women's hiking trousers JOHANNESBOURG COURT 3 F
  • Women's hiking trousers JOHANNESBOURG COURT 3 F
Women's hiking trousers JOHANNESBOURG 3 F
  • Women's hiking trousers JOHANNESBOURG 3 F
Lightweight Trousers for Women CLARET F
  • Lightweight Trousers for Women CLARET F

+1

Lightweight Trousers for Women LEVANNA court 3 F
  • Lightweight Trousers for Women LEVANNA court 3 F
Lightweight Trousers for Women LEVANNA 3 F
  • Lightweight Trousers for Women LEVANNA 3 F

+1

Lightweight Trousers for Women CARLITA 2 F
  • Lightweight Trousers for Women CARLITA 2 F
Lightweight Trousers for Women CARLITA COURT 2 F
  • Lightweight Trousers for Women CARLITA COURT 2 F
Lightweight Trousers for Women PLARET Court F
  • Lightweight Trousers for Women PLARET Court F

F.A.Q

We answer your questions

Need help?

Our team of experts, based in Valence in the Drôme, will get back to you quickly by email, from product advice to order tracking.Based in the French Alps, our specialist team provides prompt email support for product guidance, order tracking, and any other inquiries.

FAQ

Frequently asked questions

These trousers run slightly large: if you’re between sizes, we recommend the smaller size. The size guide on the product page gives the height in centimetres and corresponding weight for each size.

They weigh 280g in size S: ultra-lightweight trousers.

It depends on the phone. The trousers have three zipped pockets: one angled pocket on each thigh and one at the back of the waistband. They’re narrow: a large smartphone is difficult to fit and weighs down the thigh.

Silicone strips on the inside keep the leg hems in place over your shoes, while reinforcements protect them from abrasion against rocks and vegetation. The ankles are close-fitting, with zips to make it easier to get your feet through.

The product page lists only one leg length; there is no short version. Several customers between 1.58 m and 1.63 m find them long, while one customer who is 1.73 m finds them a little short.

No, it is water-repellent: the DWR treatment sheds raindrops during a brief shower, but it cannot replace waterproof trousers when the rain persists. It also protects against sustained winds of 40 to 60 km/h.

Yes: the fabric is rated UPF 40+, and the trousers cover your legs.

Wash them at 30 °C maximum without fabric conditioner, then air-dry them: avoid tumble-drying. The fabric is made from polyester and elastane, a synthetic material that releases plastic microfibres into the environment during washing.

All orders placed by midnight are prepared the next day. In France, orders placed before 1 pm (excluding weekends) with Chronopost 24h are dispatched the same day. Delivery then depends on the carrier and takes 1 to 4 days in France. Delivery times for Europe and the rest of the world vary by destination.

Yes, absolutely. You have 30 days to return it and get a refund or an exchange. Return shipping is free. The item must be new, unworn, unwashed, and have its original tag.

Are you in the right place?

Select your shipping country