Forclaz 400 Men's Hiking Waterproof Rain jacket

€ 68.00

Designed for experienced mountain hikers seeking protection from heavy rain and wind without hindering their movements.

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SKU: S9770 (1822476)
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Available online

Delivery in 3 to 4 days

Product benefits
  1. Waterproof
    3-layer fabric (10,000 mm). W/P seams & zips. Tested under 100L/h/sqm for 3h..
  2. Breathability
    Material limits condensation inside the garment. Hydrophilic coating (RET=6).
  3. Ventilation
    30 cm underarm ventilation zips that help to eliminate perspiration (Size: L)
  4. Freedom of movement
    Freedom of movement
    Stretch fabric (13% elastane) for optimum comfort in use.
  5. Lightweight
    Weight: 590 g in size L.
  6. Anatomic design
    Jacket hem drawcord. 2-way (height and depth) adjustable 3D hood.
  7. Pockets
    Three waterproof secure pockets. One mesh inner pocket.
  8. Environmental impact
    Environmental impact
    Note D - Comparison: men's waterproof jacket - detailed technical info
  • Weight
    610g in size L.
  • Sizes
  • Weight
  • Sizes
Product feature
  1. Sizing and fit information
    Fitted cut to fully benefit from the stretch component. The jacket is loose enough to wear it over a fine lightweight second layer such as a pullover or light down jacket.
  2. Hood
    Attached hood with two-way (height and depth) adjustment using elastic drawcords and toggles. Stiff visor for maximum face protection.
  3. Pocket system
    2 hand pockets with waterproof zips + 1 outer breast pocket with a waterproof zip + 1 easy-access inner mesh pocket.
  4. Jacket hem drawcord
    Elastic drawcords and toggles.
  5. Adjustment of cuffs
    Velcro tab fasteners.
  6. Main component
    Triple-coated stretch fabric.
  7. Additional recommended products
    Forclaz Rain overtrousers for protecting the lower body to complete an effective rain protection outfit designed for mountain walks. Care products: waterproof spray or liquid in the machine, to renew the fabric's water repellent properties and optimise performance throughout the lifetime of your garment.
  8. Component waterproofing
    We measure the resistance of a fabric to water pressure expressed in mm of water column (test based on Standard ISO 811). The higher the pressure, the more the fabric is waterproof. Components with a 2000 mm rating can withstand the pressure of a 2000 mm column of water (which is equivalent to a rain shower lasting two hour).
  9. waterproofing of the garment
    This garment was passed following a 3-hour shower test under 100 L of water/sqm/hr. This test reproduces the conditions of a violent storm in the mountains.
  10. Component breathability
    In addition to breathability of the fabrics used, Quechua develops technical solutions (zips, ventilation, mesh, etc.) to improve the overall ventilation of its trekking jackets and overtrousers designed for great hiking use (Forclaz, Bionnassay and Helium lines). These ventilation systems allow both temperature regulation inside the garment and help wick away perspiration generated by the body during exercise.
  11. Component with coating or a membrane
    The coating is 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 advantage of being more supple, lightweight, durable and often more breathable than the coating.
  12. Component 3 layers, 2 layers or 2.5 layers
    3 layers: the membrane is bonded between the outer and inner layer of the component. This construction helps the membrane last longer and boosts the component's performance. 2 layers: the membrane is only bonded to the outer fabric, the inner protective lining is free. This construction costs less but is generally more cumbersome. 2.5 layers: the membrane is protected on the inside by a kind of varnish coating rather than an actual layer to make it as lightweight as possible
  13. Component water resistance
    A fabric is water repellent when it allows water to slide over its surface without seeping in. This prevents the fabric from soaking up water and keeps it lightweight, warm and breathable. The water-repellent effect is achieved by treating the outer surface of the fabric. This treatment must be renewed throughout the garment's lifetime (recommended after every three washes). All Quechua waterproof jackets have received a water repellent treatment.
  14. A score for comparing products' environmental impact
    The product's environmental impact is calculated over its entire life cycle using different indicators. A score ranging from A to E is attributed so that you can easily identify the products with a better environmental performance compared to products of the same type (T-shirts, trousers, backpacks,...). Decathlon totally backs the environmental labelling approach. For more info:
  15. A score for comparing products' environmental impact
    The product's environmental impact is calculated across its entire life cycle using different indicators. An overall ABCDE score is attributed to help you more readily identify the products with the best environmental performance by comparing the same type of product (T-shirts, trousers, backpacks, etc.). Decathlon is committed to visually displaying environmental information. For more information visit:
Product testing
  1. Composition
    Outer fabric: 84% polyamide / 16% elastane. Lining: 74% polyester / 26% elastane.
  2. Storage advice
    Always make sure that this waterproof protective garment is completely dry before storing it.
  3. Cleaning advice
    Wash at 30°C. Use liquid detergent; do not use fabric conditioner. Fasten zips and rip-tabs before washing. With each wash, restore the fabric's water repellent properties using a suitable treatment. A complete range of care products specially designed fo
  4. Product catchline
    A waterproof, breathable, ventilated and stretch jacket at an extremely competitive price.Sturdy and reassuring thanks to its 3-layer component, this jacket will be a long-term partner for your hikes.
  5. Lab tested
    Our team of designers is based at the foot of Mont Blanc, in the Haute-Savoie region (France). All year round, we create and develop products that are attractive, simple and technologically advanced. These are then ruthlessly tested in the field because w
Product reviews
4.4 / 5
443 reviews
397 users recommend this product
Write a review
  • Thus far very good

    ROBERT (United Kingdom)
    Used for 7 to 12 months
    Ideally I would have given this a 4.5 as it does have it faults but for the money it is very, very good.
    The material is 2 layers I think and stretchy almost like one of those soft-shell-esque waterproof jackets that are currently en vogue.
    I should say that I have had many waterproof jackets of various prices and materials over the years from Haglofs, Rab, Sprayway and Montane, North Face and Berghaus. Everything from eVent, Goretex, Pertex Shield Plus and own-brand laminates and ventile. The Rab eVent was good but being a pull-on is awkward (especially since putting on weight) and was dearer than this in a half-price sale whereas all the others failed at sometime or other - several on the first outing!
    What I can say now after a good few uses and some not insignificant rain is that it is still beading and is comfortable to wear.
    Pluses - performance, price, hood adjustments once used to it, comfort, weight (okay - not super light though).
    Minuses - sleeves overlong and velcro tabs need to be used fully as cuffs too wide, not packable (not a real issue for me), hood peak maybe a tad too short, small choice of colours.
    Overall I am really happy with this jacket so far. Most important for me is performance and value and this scores very highly in both regards.
    The pit zips and okay, and I can live with the sleeve and cuff issue. It works better for me that jackets costing 2, 3 or even more times the price and seriously.... why would you bother paying more for a name?
    It could have more features but that would probably result in a higher price so I am happy with it as is.
    I should say that I haven't washed it yet and will avoid doing so as long as possible but so far, so good :)
  • Very Good Fit

    (United Kingdom)
    Used for 1 week or less
    Received this today promptly within 48 hours of ordering. Having had previous misgivings about buying online due to outdoors kit with big fat American sizes I referred to the Decathlon sizing chart which turns out to be correct. The drop tail and tailored cut is on the athletic side, with a 40" chest and 32" waist it fits perfectly with room for a fleece or similar underneath. Go up a size if you are more portly than my self. Features such as the pit vents, laser cut pockets and the helmet compatible hood are all top notch as is the stitching. Its possibly not as downpour proof as heavier Goretx jackets but no DWR coated breathable jacket is in my experience unless you want to spend a few hundred on a Gore paclite. You can get other jackets at this price point but nothing as usable or robust - it's excellent.
  • Okay if the rain isn't sustained

    Andrew (United Kingdom)
    Used for 7 to 12 months
    I've used this jacket a number of times in reasonably heavy rain when commuting to work. It's always seemed great. However, the rain has never been sustained. Longer than 20 mins or so. Today I used it in sustained heavy rainfall. The material itself is fine. However the zip leaked after about half an hour. So I ended up with a wet stripe right down the front of my clothing that would only have gotten worse had I not been able to get indoors. A bit disappointed based on the performance of the material.
  • Solid jacket, great value!

    Jon (United Kingdom)
    Used for 3 to 6 months
    Bought it as an urgent replacement for a far more expensive jacket that leaked through the fabric. Was pleasantly surprised with how well this jacket performs. Used it in very wet conditions and as a winter mountain shell in extreme wind chill. Fabric stretch is nice and the hood accommodates a helmet. Not incredibly light and the sleeves are quite long but these are minor gripes. Was going to bite the bullet on a GTX pro shell but might not bother now!
  • Incredible jacket

    Ben (United Kingdom)
    Used for 2 to 8 weeks
    This is a 3 ply membrane jacket. That would be great but the fact that it's stretchy, perfectly cut and totally waterproof is bonkers. It's my go-to jacket for rainy hikes in North Wales now. Very impressed.
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