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Simond Men's MT500 Long-sleeve 100% Merino Wool T-shirt
Long-sleeved base layer made from 100% warm and breathable Merino wool. Take it on all your mountain trips!
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San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Odor control: The component limits perspiration odours. Laboratory test ISO 17299-3
- Warmth: 100% Merino wool t-shirt (190 g/sqm) for additional warmth
- Moisture wicking: The high absorption capacity of the wool removes the feeling of dampness
Product Features

Odor control
The component limits perspiration odours. Laboratory test ISO 17299-3
Warmth
100% Merino wool t-shirt (190 g/sqm) for additional warmth
Moisture wicking
The high absorption capacity of the wool removes the feeling of dampness
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
Just 210 g in size L. Fabric 190 g/m²
Questions & Answers
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Product Customer Reviews
Used as thermal underwear. Lightweight, it keeps you warm enough (tested during night shifts or days of motorcycle riding). Moisture wicking is good and drying time is fast. The price is reasonable for the comfort provided and the 100% merino.
Top odor-inhibiting
Traditional cut and somewhat short sleeve Considering that I always wear size L in my t-shirts. This model has short sleeves.
Very good product that provides comfort in terms of warmth and softness. I recommend it.
Alright
I use the orange color. I love it. I use it both for cycling and trekking. Good as a first layer. In combat conditions it can be carried for 2-3 days.
Ideal for hiking and motorcycling.
Ideal for hiking and motorcycling.
Honestly, very effective in terms of warmth. I use it as an after-sport outfit when bivouacking.
I recommend
I just finished a hike and I am very satisfied
Satisfied with the use under sweater
Unbeatable once again in terms of value for money. 100% merino Very comfortable to wear and light.
I rate the product as a plus. I checked different options on the market and this choice looks very good. I am about 177 cm and 76 kg, size L fits nicely and is not too tight. I also took M earlier, which also fits me well but already clings and strongly emphasizes the figure.
Very nice fabric. This long-sleeved t-shirt limits odors well, comfortable to wear, it has a very nice look. It can be worn in the city as well as during an "outdoor" activity and in cold weather. Thank you Decathlon.
Size Guide

Additional Product Information
Composition
Main fabric: 100.0% Wool
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.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 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
We've tested the material in a climate-controlled chamber in order to determine its performance level. The results highlighted the heat-regulation properties of wool. Indeed, after making a physical effort and sweating a lot, wool helps to maintain a consistent body temperature while synthetic fabrics cool down faster. The unpleasant cooling or freezing effect is therefore reduced by the merino wool.
Origin
Imported

Simond Men's MT500 Long-sleeve 100% Merino Wool T-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.
