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W Waterproof Trekking Boots MATRYX® and VIBRAM® - ALLTRAIL MT7

Was £139.99

These waterproof boots provide comfort and foot support on relatively difficult trails with a moderate to steep slope.

Are you looking for innovative boots? Durable, waterproof and lightweight? With high durability MATRYX® textile, they will soon become your best friend on all terrain.

Color: Steel grey
Size: size guide


Product benefits



Vibram® rubber sole with excellent grip on dry and muddy terrain



Waterproof membrane tested on a 20 km walk in water up to the mid-upper



High performance Matryx® textile and 100% rubber toe bumper

Foot motion

Foot motion

Semi-rigid sole for a good compromise between foot movement/precision of hold



High upper with 2 high hooks +1 secure blocker hook + X ankle system



Durable and high-performance PU cushioned midsole



Only 540 g per boot in size 39 (UK size 6)



Black “dope dyed” yarn upper. Recycled mounting sole and "X" part*

Technical information

MADE IN EUROPE MANUFACTURING : 100% of Forclaz boots are manufactured in Europe

These boots are manufactured in the European Union, in Romania, in a factory that specialises in making hiking boots (SKANDIA).

Main upper component: Made in France
For greater transparency, here is the link to our French partner:

Tip: copy/paste the links on this page into your preferred search engine)

VIBRAM®. Grip and traction of our soles

Our VIBRAM® branded soles provide excellent grip on all dry, earth or rocky terrain.
Just awesome! The VIBRAM® notching also gives you grip adapted to muddy or wet terrain.
Medium width sole: the wider the sole, the softer it is.
Therefore, with this sole it’s comfortable to walk on most trails without losing stability.

MATRYX® technology? ULTRA-RESISTANT and very technical textile with a weaving technique rooted in French expertise.

The part of the upper, which is used the most in the field, is made of a MATRYX EVO fabric. It is a jacquard with a built-in lining. Technical compound of a PA warp coated with 550DTEX PU and a PA weft coated with 550DTEX PU. 167Dtex PES lining
Aramid yarn throughout the upper to ensure good support


The durability over time of the MATRYX® technology is undeniable. The French design and the recycled polyester yarn used in the composition of certain textiles add to our contribution to developing sustainable products.
To find out more:

Tip: copy and paste in your favourite browser from the link above ;)


This boot has been tested and validated for 50,000 flexes repeatable, equivalent to a 20 km walk, in water reaching the mid-upper. This now guarantees a good level of boot waterproofing.
--> Our assessment indicates a LEVEL OF 4/5 giving 8 hours of waterproofing when hiking in the rain.

The details of tests carried out to assess the waterproofing of our boots is below.

WATERPROOF BOOT OR GAITER? it’s not necessarily one or the other! it provides additional protection

The waterproofing of boots is often compromised because water gets in at the collar of the boot. --> To keep your feet dry for longer, it is advisable to use a waterproof gaiter or mini-gaiter that will prevent water as well as pebbles and sand from getting inside through the top of the boot.
Model perfectly suited to this TREKKING GAITER MT500 BLACK €15

How to make the waterproofing of this textile model last longer?

Even though this model has a WATERPROOF MEMBRANE (waterproof, breathable), it is recommended you use a re-waterproofing spray a few times a year to restore the original water-repellent properties and prevent staining of the outer material.

--> It revitalises the water-repellent properties of the outer material (water runs off and doesn't soak in). Each fabric section is sprayed taking care not to forget the thread in the seams (water loves seams!!)

Care advice, application of the waterproofing spray

1/ Use a brush and/or sponge to clean and remove any dirt or mud.
2/ Then leave to air dry, away from any heat source.
3/ Shake the WATERPROOF SPRAY can €5
4/ Spray the product from a distance of 25 cm
5/ Leave for at least 10 minutes. Caution: Do not rub or wipe.

Link to SPRAY below:

No eco-design without great durability in our products!

As well as the various laboratory tests, these boots were tested in the field by passionate trekkers during a 500 km DURABILITY MISSION TEST, on the GR5 and trekking trails of the Canaries. Check out the film of this mission test by clicking this link:

Environmental approach: Eco-design / Sole / X ankle system

Our mounting sole is made from 80% recycled plastic.
Our ankle skeleton support (the black “X” part) is made from 100% recycled plastic.
Our main upper component is made in France.
Production and assembly is European.

Environmental approach, Dope Dyed

DOPE DYED black yarn in the upper. Textile dyeing requires a lot of water but also produces waste water from the dye baths.
To reduce the environmental impact, we have opted for mass pigmentation (also called Dope Dye), integrating the colour pigments from initial thread manufacture.
This technique saves a large quantity water and considerably reduces CO2 emissions. What's more, the dying of the clothing lasts longer as a result

Lab tests

Laboratory tests were conducted to test the following elements: - tearing of the eyelets and straps
- bonding of the sole
- toxicology
- UV-resistance
- abrasion of the sole and components of the upper
- accelerated ageing

Can crampons be used with these trekking boots?

This model of trekking boot allows for the occasional use of STRAP-ON CRAMPONS ONLY. It is sufficiently rigid for the occasional use of strap-on crampons while guaranteeing extremely good comfort when walking.

Which size should I select?

Which size should I select?For hiking, do not hesitate to buy one size larger than the usual size to guarantee excellent comfort on the descent and to avoid toes rubbing at the tip of the shoe. Tip: keep your toenails short and, before descending, check that your lacing prevents your foot from sliding forwards inside the boot.

5 levels of waterproofing

During the waterproofness test, we test 5 levels of waterproofness:
- 2,000 flexes (approximately 4 km, 30 minutes of walking)
- 10,000 flexes (approximately 10 km, 3 hours of walking)
- 30,000 flexes (approximately 15 km, 6 hours of walking)
- 50,000 flexes (approximately 20 km, 8 hours of walking)
- 100,000 flexes (approximately >20 km, 24 hours of walking)

100% waterproofing laboratory tested

Our boots are laboratory tested by 2 consecutive tests.
Test 1: We test the effectiveness of the membrane alone immersed in water under air pressure. We simply check for any bubbles on the surface like a pierced air chamber.
Test 2: Thanks to a mechanical arm that simulates walking, the entire boots are half immersed in water and they complete thousands of flexes to check that the inside of the boot remains dry and it is therefore waterproof.

BUYING TIPShow to try on your boots?

How to choose your boots:
1. Try on both shoes, standing up, with the socks worn for hiking. 2. Tighten the laces correctly.
3. Check the following two areas of comfort: the base of the heel and the front part of the foot going down. 4. Stand up to walk with the boots on.
5. Try on several sizes and several models.
6. Gradually start using you shoes during your first few hiking trips to break them in.

Co-design closest to the anatomy of the foot in partnership with a chiropodist

These boots were co-designed with passionate trekkers, each bringing their own special skills. For example, one of our co-designers is a chiropodist who helps us to meet the physiological needs of people's feet and to make sure they are comfortable and safe during treks.


5 years

Product concept & technology

Product Composition

Outer sole of 45% Rubber - Synthetic, 40% Polyurethane, 15% Ethylene Vinyl Acetate Upper of 45% Polyamide, 25% Thermoplastic Polyurethane, 20% Polyester, 10% Rubber - Synthetic Lining and sock of 100% Polyester


Store in a dark, dry and well-ventilated place.

User Directions

Not suitable for mountaineering.


All our boots undergo comfort and use tests carried out by users who are representative of our target market and in conditions identical to those you could encounter. To test, assess and validate products, our Mission Tests connects the product manager with individuals independent to FORCLAZ.

Approved By

Medium and high altitude mountain guides from the ASTER association take part in the development of our hiking boots, working closely with FORCLAZ designers and engineers.

This model can be used with strap-on crampons on an occasional basis only. For example, this model:

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