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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!
Free shipping over $49
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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
An ideal baselayer giving warmth whilst not causing overheating
Good thing about this is it’s not itchy, which is what merino is supposed to be. It’s very thin, I doubt it’ll keep you warm, but then again I expect this to function as a base layer for moisture wicking, not warmth. However, what let’s this down is that after going in the wash at 20 degrees Celsius with minimal spin and dried flat, it shrunk so my sleeves end in the middle of my forearms. Disappointed.
The product is described as 100% Merino. It isn't, it's 86% Merino. This being the case the product doesn't justify the cost, it's poor value.
Good merino wool t-shirt
Meets expectations
Comfortable, lightweight, and warm Use as an undershirt
A nice base layer shirt, perfect for skiing and other activities
Used as thermal underwear. Lightweight, it keeps you warm enough (tested during night shifts or days of motorcycle riding). Perspiration wicking is good and drying time is fast. The price is reasonable considering the comfort provided and the 100% merino wool.
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.
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.
Alright
Ideal for hiking and motorcycling.
Ideal for hiking and motorcycling.
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.
