Forclaz 100 Men's Hiking Waterproof Rain Overtrousers - black

Réf :
Key feature
Waterproof, breathable, and easy to pull on even with shoes, these overtrousers will complement your waterproof hiking jacket to keep you dry even during heavy storms!
Users reviews
4.2 / 5 30 ratings

Users reviews

4.2 / 5 30 ratings
25 users recommended this product
  • Man
    20-29 years old
    03 February 2017
    Use since 1 week or less
    That review has been deposited on this product version
    purchase confirmed
    Stiching is gone

    Quality of stiching thread is really bad

    Brand's answer :

    Hello Mr. Krishna,

    Thanks for your feedback on the Forclaz 100 rain trousers. I apologize for the inconvenience caused to you.

    To give you an insight on the trousers, these are one of the best from our range of waterproof trousers for a mountain hiker protecting from the rain, wind and snow. Also to let you know, all our products are tested by users on terrains a hiker will encounter on the mountains and also in similar laboratory conditions which allows us to ensure a 2 year replacement warranty on all our products. Here in this case, can you please explain me your usage which will help me understand the issue better and provide you with a solution at the earliest.

    I stay at your disposal if you need any further assistance.

    Sandeep NAIR

    Sandeep NAIR

  • Man
    20-29 years old
    21 January 2017
    Use since 7 to 12 months
    That review has been deposited on this product version
    Very good in terms of durability and comfirt
    waterproof and good in snow and wind.

    This is really good pants for multi-day hike or trek, I have used this in snow, rain and even in summer treks and it is working well with all the climates, in hot we could open the zipper on the both sides and apply Velcro for air circulation. No complaints so far. Also it comes with warm insulation layer over the thigh which helps in cold. Must have for hiking. If you have this Trouser with extra normal trouser you can hike around 10 days.

  • Man
    40-49 years old
    08 April 2017
    Use since 1 week or less
    That review has been deposited on this product version
    purchase confirmed
    Nepromokavé kalhoty .

    Nepromokavé kalhoty . Kvalitní a pohodlné .

User benefits

8 000 mm waterproof membrane. Fully taped seams.
Hydrophilic membrane (RET=12): limits condensation inside the garment.
Side ventilation zips: enhances moisture management.
Easy dressing
3/4 length leg zip: can be pulled on over your shoes.
Weight:690 g in size L.

Technical card

560g in size XL.
S to XXXL.
anthracite / black.
Main fabric : 100.0% Polyester (PES) Yoke : 100.0% Polyester (PES)
Our design team is based at the foot of Mont-Blanc, in Haute-Savoie (France). All year round, we create and develop products that are beautiful, simple and technologically advanced. These are then ruthlessly tested in the field, as we remain convinced that only through rigorous testing under real world conditions, like the ones you will be using them in, can we continue to provide you with better products than ever.
Designed to
mountain hikers who want to protect themselves from the rain, snow and wind and keep their bodies dry.
2 years


Care instructions
Wash at 30°C. Use liquid detergent; do not add fabric conditioner. Fasten zips and rip-tabs before washing. With each wash, renew the fabric's water repellent properties using a suitable treatment. All our Decathlon stores offer a complete range of products specially designed to care for water-resistant and breathable fabrics. These products will help you optimise your garment's performance throughout its lifespan.
Storage Tips
Always make sure that this waterproof protective garment is completely dry before storing it.


Sizing information and cut
Standard cut. Can be worn over trousers, tights or hiking shorts. Please note: Warning, no seams possible because of the side zips on the legs.
Straps are removable, and length is adjustable by rip-tabs.
Waist size adjustment
With rip-tab + plastic buckle systems on each side of the waist.
2 hand pockets with zip fastening.
Easy to put on
Zip along 3/4 of leg length so they are easy to slip on/take off without having to sit down or remove footwear.
Trouser cuffs reinforced with highly durable patches, which are tear- and cut-resistant.
Main component
Double-coated fabric.
Technical linings
Micro-fleece inside the waist and on the seat for comfort/nylon around the knees for ease of movement and durability/mesh on the thighs for breathability.
Recommended additional product
Care products: waterproofing spray or liquid in the machine To renew the fabric's water repellent properties and optimise performance throughout the lifespan of your garment.
Waterproof component
We measure a fabric's resistance to water pressure, expressed as a water column of mm (based on the ISO 811 standard). The higher the water pressure withstood, the more waterproof the fabric. Components scoring 2000 mm can resist the pressure from 2000 mm of water (which is equivalent to a rain shower lasting two hours).
This garment has been shower-tested using 100 litres of water/sqm/hour for 3 hours. This test reproduces the conditions of a violent storm in the mountains.
Component with membrane or coating
Coating: like a layer of "paint" applied on the underside of the fabric to make it waterproof while remaining breathable. It is often less costly than a membrane, and requires a lining for protection. The membrane: is like a very fine plastic film (polyurethane) making the component waterproof while remaining breathable. It has the edge, being more supple, lightweight, durable and often more breathable than coating.
Component breathability
To find out whether a fabric is breathable, we test its evaporative resistance or RET (based on the ISO 11092 standard). The lower the fabric's resistance, the more water vapour generated by physical activity evaporates, and the higher the fabric's breathability. For example: RET < 9 = extremely breathable fabric / 9<RET<12 = very breathable fabric / 12<RET<20 = breathable fabric / RET>20 = little or no breathability.
In addition to breathable fabrics, Quechua develops high-tech solutions (zips, ventilation, mesh, etc.) to improve the overall ventilation of its hiking jackets and overtrousers. These ventilation systems allow you to regulate the temperature inside the garment and also to facilitate the transfer of perspiration generated by the body during physical effort.
Water repellency
A fabric is water repellent when it allows water slide over its surface without seeping in. This prevents the fabric from swelling, and keeps it lightweight, breathable and warm. The water repellent property is achieved by treating the fabric's exterior. This treatment must be renewed throughout the garment's lifetime (recommended after every three washes). All Quechua overtrousers benefit from a waterproofing treatment.