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Forclaz Trek 500, Short Sleeved Merino Wool Hiking T-Shirt, Men's

Sale price: $30.00 Regular price: $44.99

T-shirt in Merino wool reinforced for improved durability. Ideal for backpacking for several days: no odors, no washing!

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This product runs small

Sale price: $30.00 Regular price: $44.99

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Final Sale: No returns or exchanges

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8573905

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Product Features

Forclaz Trek 500, Short Sleeved Merino Wool Hiking T-Shirt, Men's | Our team of mountain backpacking enthusiasts developed this Merino T-shirt for long treks without having to worry about unpleasant odors

T-shirt in Merino wool reinforced for improved durability. Ideal for backpacking for several days: no odors, no washing!

A photo of the Forclaz Trek 500, Short Sleeved Merino Wool Hiking T-Shirt, Men's in use

Abrasion resistant

Use of a wool yarn protected by a surrounding polyamide yarn

Odor control

Merino wool (89%) naturally helps prevent unpleasant odors

Moisture wicking

The high absorbency of wool helps keep the body dry


The T-shirt weighs just 5.4 oz in size M. Fabric 5.5 oz/m2.

Freedom of movement

The natural stretch of wool offers unrestricted movement


Breathable material to maintain an ideal body temperature even in the summer!


Ultra-fine (18.5 microns) Merino wool. It is very soft and non-itch

Questions & Answers

Product Customer Reviews

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Forclaz Trek 500, Short Sleeved Merino Wool Hiking T-Shirt, Men's
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Great shirt

This shirt keeps me very comfortable when doing outdoor activities in the winter. When doing strenuous activities (e.g. snowshoeing) at a few degrees below zero (Celsius) I am comfortable with only this shirt on my upper body. I'll get more of these for next winter.

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Hi James,

Thanks for another great review! We are happy to hear that this shirt worked out really well for you! We appreciate all your feedback!


Get value

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Hello Andrew,

Thank you for leaving a review about this merino t-shirt.

We are really happy to read that you are satisfied with you purchase and we hope to see you again soon!

Decathlon Calgary Team


Enjoying so far. First merino wool shirt I’ve owned. Will see about durability. Price point seems almost too good to be true but alas the decathlon way.

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Hi David! You said it: "it's the Decathlon way"! Our prices do not reflect quality (nor sustainability)- we are just able and willing to make prices (and in turn, sports) accessible to the many! You can read more about the "why" behind our affordability here: Thanks for visiting us and we hope you enjoy many comfortable hikes in your new shirt! 💙

light weight

light and warm. But it causes itchy on my skin if I wear it for a long day.

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Love merino tops

Eady wash and dry. Perfect for all sports.

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Merino wool t-shirt

Great value merino wool top.

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Bargain merino wool top

What can I say but what a great price for a merino wool base layer.

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Leroy's review

I wore the short sleeved merino base layer on a 12 mile back packing walk on the Wold Way. It was a hot day and I was carrying my 33 litre back pack. The base layer wicked moisture away efficiently and I did not feel uncomfortable despite the weight I was carrying.

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Possibly the best product Decathlon sell. Just as good as branded stuff twice as expensive. Love the anti odour properties

“Top” value

Merino for this price is excellent

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Too delicate

I'm very disappointed with this T shirt as it's already got several runs in the material about 4 inches long. Hardly lasted any time & the material is too delicate for hiking use.


Great tech T-shirt, used for MTBing, walking and climbing. I’ll be getting another few

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Short sleeved t-shirt

Lovely sweat-wicking material, nice colours.

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Stylish and Comfortable

Well fitted top, soft and comfortable and dries really fast after washing.

Great T-shirt (and no pong!)

Bought this for a trek in the Atlas Mountains knowing that there would be at least three days without showering. Comfortable, reasonably quick-drying and it really didn't pong at the end of it all. The only negative was the slightly itchy stitching for the cable on the sleeve. A quick un-pick with my penknife and problem solved. Really impressed, especially at the price.

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Size Guide

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Additional Product Information


Main fabric

  • 89% Wool
  • 11% Polyamide


  • 89% Wool
  • 11% Polyamide

Sizing and fit

This T-shirt has a slightly fitted sporty cut that facilitates moisture transfer toward the outside of the fabric. Select your usual size or 1 size larger if you prefer a looser fit.


Use of a BETA-SPUN yarn structure in which the polyamide threads coat the Merino wool fibers and protect them from rubbing and cuts without affecting their properties.

Origin of the merino wool

We only use wool from Merino sheep raised on farms in South Africa that do not practice mulesing. We decided to build a partnership with a group of breeders (Konsortium Merino) to guarantee respect for animal welfare and the environment. We thus have complete traceability, which allows us to guarantee the origin of the wool. More information:

Odor control

Wool from Merino sheep naturally controls the spread of bacteria that cause bad odors. This Merino wool T-shirt can therefore be worn several days in a row and means you can take less clothes when backpacking making for a lighter backpack!

Reduction of the chilling effect

After exercise and heavy sweating, Merino wool prevents evaporation, helping to maintain body temperature by absorbing the majority of the body's moisture. This therefore reduces any unpleasant chilling effect. Conversely, a synthetic material lets the body temperature go back down again quicker.

Tip before use

For a softer feel, wash your T-shirt before first use.

How do i wash my merino wool t-shirt?

We recommend that you machine wash your Merino wool T-shirt at 86°F on a normal cycle, preferably with liquid detergent. Dry flat and NEVER tumble dry unless you want it to shrink by 1 or 2 sizes! For more information:



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


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