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Forclaz Men's Mountain Backpacking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500
A truly comfortable base layer, this t-shirt contains reinforced Merino wool for greater durability. Its collar features a zip for better ventilation.
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San Francisco, 735 Market St. Options
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About this item:
- Weight: 8.6 oz (240 g) in size M. Fabric 6.7 oz/sqm
- Softness: Ultra-fine Merino wool (18.5 microns). It’s very soft and doesn't itch
- Odor control: The Merino wool (86%) naturally helps prevent unpleasant odors
- Breathability: Merino wool is breathable and helps maintain the right body temperature
- Moisture wicking: The high absorbency of wool helps keep the body dry
Product Videos
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
Moisture wicking
The high absorption capacity of the wool removes the feeling of dampness
Abrasion resistant
Wool fibre surrounded by polyamide yarn for protection
Breathability
Breathable merino wool helps maintain an ideal body temperature
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 243 g in size L. 190 g/sqm fabric
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Product Customer Reviews
In addition to its tight fit, which is suitable for use in the mountains without creating heat loss black spots, it feels pleasant on the skin and is an excellent first layer. It can be worn for a few days in the mountains without accumulating unpleasant odors and the high collar helps to cover the neck to avoid cold drafts. When sweaty, if you catch a cold wind, it becomes a little unpleasant, but this is something that most first layers suffer from, whether synthetic or natural, as is the case. When compared to similar products on the market, it is an excellent option, at a practically unbeatable price.
And that's quality. I complained. Let's see how good the service is. I've never experienced anything like this with any of my shirts. Unfortunately, it's unwearable.
It was a bit tight on my six pack. That's why I wore a bamboo T-shirt underneath. The two together were perfect for a winter expedition.
Awesome
I bought wool underwear first, and it didn't smell bad after wearing it for four days. I decided to buy wool long sleeves as my companion for the next mountain climbing.
Perfect for running outings below 10 degrees
Good odor suppression effect
Great value, good quality, but the size is small
Comfortable and pleasant to wear. Warm without giving the feeling of suffocation.
I recommend, size fits, good breathability, dries quickly
Really great merino t-shirt with long sleeves and a collar around the neck. I use it for all winter and spring activities and I am extremely satisfied. The material is nice and warm, while wicking moisture well. Size XL is a bit looser for me but still within the limits of good usability. Overall an excellent product.
Very nice shirt. Works great as a first layer. I recommend it
Lightweight and comfortable to wear
I used it on a day between 4 and 1 degrees, with another technical shirt over it and a snow jacket. What can I say, it made me warm and still breathed very well, without bad odors. Excellent purchase.
A little disappointed by the look of the product that I imagined differently with its zipper and folded collar, it is not incredibly warm either, just warm, at the price of the product I expected to be pleasantly surprised, it is perhaps my expectations that disappointed me
Size Guide

Additional Product Information
Composition
Main fabric: 86.0% Wool, 14.0% Polyamide ; Yoke: 98.0% Wool, 2.0% Polyamide
Odour control
The components used reduce bad odours. Laboratory tested to standard ISO 17299-3.
Reduction of the freezing effect
After exercise and sweating heavily, 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 faster.
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 ZIP T-shirt at 30° 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 Mountain Backpacking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500
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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.
