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Forclaz Men's MT500 Merino Wool Long-sleeve Shirt
Looking for a comfortable, long-sleeved t-shirt? Here's the solution with this warm and breathable base layer that contains reinforced merino wool for superior durability!
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San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Warmth: Merino wool T-shirt for extra warmth on your base layer
- Odor control: The Merino Wool (86%) naturally helps prevent unpleasant odors.
- Softness: Ultra-fine (18.5 microns) Merino Wool. It is very soft and non-itch
- Weight: 7.8 oz in size M. Fabric 6.7 oz/m2
Product Features

Odor control
The component limits perspiration odours. Laboratory test ISO 17299-3
Warmth
Merino wool T-shirt (190 g/sqm) to provide additional warmth
Abrasion resistant
Wool fibre surrounded by polyamide yarn for protection
Moisture wicking
The high absorption capacity of the wool removes the feeling of dampness
Breathability
Merino wool is breathable, stays warm in winter, wicks away moisture in summer
Freedom of movement
The natural stretch of wool offers unrestricted movement
Softness
Ultra-fine (18.5 microns) Merino wool. It is soft and pleasant to wear
Weight
The T-shirt weighs just 222 g in size L. Fabric 190 g/sqm
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Product Customer Reviews
I have all 3 versions, from the thinnest to the warmest. This is the middle one and it's the most useful to me.
Used this product as a base level to cycle at Shimanami Kaido in Japan. It helped to keep me dry and warm in a very cold environment. (Around 10 - 15 degrees celcius)
Very good product, thin but very warm. A little expensive.
Nickel, the quality of merino wool. Comfortable, limits odors while maintaining body temperature.
good value for money
After intensive use during the cold season in the mountains I have to say that it has done its job more than well. I have been using merino wool for several years and for all seasons. Since I sweat intensely this garment allows me not to have that feeling of cold during physical activity
This is another T-shirt from this series
Comfortable to wear. Warm enough. Ideal as an undershirt. I recommend it to everyone.
Nice T-shirt, very warm.
Long-sleeved t-shirt, ideal for winter hiking or ski touring.
I bought 2 pieces because of the comfort and appearance, unfortunately both of them wore out quite quickly on the elbows which ruins the rating due to the high purchase price...
Decathlon's designs will not disappoint you. Decathlon's materials are worth the money. I love wearing Decathlon's clothes. They are comfortable and admirable.
Encouraged by the opinions about merino shirts in trekking, I will never go back to regular thermal shirts. I recommend them with all my heart, heaven and earth :)
There is no better shirt. Warm, comfortable. When I put it on, I wear it all week. It has no odors.
A T-shirt that's as useful in the city as it is in the mountains, whatever the season. A great product! When will there be new colors?
Size Guide

Additional Product Information
Composition
Main fabric: 86.0% Wool, 14.0% Polyamide ; Yoke: 98.0% Wool, 2.0% Polyamide
Odour control
The component limits perspiration odours. This Merino wool t-shirt can therefore be worn several days in a row and means you can take less clothes when trekking making for a lighter backpack!
Reduction of the freezing effect
When you make a physical effort and sweat heavily, the merino wool easily traps the insulating warm air and can absorb up to 35% of its weight in moisture without making you feel damp, which is appreciable in cool weather. In hot, dry weather, the evaporation of the water in the wool absorbs energy, which cools the body slightly at the same time.
Tip before use
For a softer feel, wash your t-shirt before first use.
How to wash your t-shirt made with merino wool?
We recommend that you machine wash your MT500 MERINO wool T-shirt at 30°C on a normal cycle, preferably with liquid detergent. Dry flat and NEVER tumble dry unless you want it to shrink by one or two sizes!For more information: https://support.decathlon.co.uk/how-to-maintain-a-merino-wool-garment
Product testing
In November 2018, 8 trekkers (4 men and 4 women) and part of the Forclaz design team tested this T-shirt for four days in the Southern French Alps (Lus La Croix Haute). You can expect wind, rain, a bit of snow, a bivouac... and a lot of fun! We were then able to make the final modifications and validate it for mountain trekking use.
Origin
Imported

Forclaz Men's MT500 Merino Wool Long-sleeve Shirt
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
