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Men's Merino Wool Long-Sleeved Backpacking T-Shirt - MT900
With high weight (240 g/sqm), a stand-up collar and thumb loops, this t-shirt will keep you warm in the depths of winter.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Warmth: This thick T-shirt (8.5 oz/m²) with Merino wool is comfortable up to 50°F
- Weight: 5.1 oz in size M.
- Odor control: Merino wool naturally prevents unpleasant odors
Product Videos
Product Features

Warmth
This thick t-shirt (240 g/sqm) made from Merino wool is comfortable down to 10°
Breathability
Helped by the inserts with their inner side weaved in channels
Odor control
The component limits perspiration odours. Laboratory test ISO 17299-3
Ventilation
Easy ventilation with its very low zip
Abrasion resistant
Use of a wool yarn protected by a surrounding polyamide yarn
Softness
Ultra-fine (18.5 microns) Merino wool. It is soft and pleasant to wear
Weight
The t-shirt weighs just 350 g in size L. 240 g/sqm and 260 g/sqm fabrics
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Product Customer Reviews

Good product, a little expensive for beginners, but good cut.
First purchase of merino wool clothing. Very well cut, quite pretty but I expected them to be even warmer
Excellent product that I use for fishing as a first layer I encourage Decathlon to expand a range based on merino wool, really very good product!
Elaborately sewn with different woven fabrics
Comfortable to wear
I must say that since I have had this mid layer I have never missed out on mountain outings. Comfortable, warm, soft, compact. It has all the advantages of merino wool products, it keeps you warm but without making you sweat, it dries in an instant and does not retain bad odors.
I can only give 5 stars. From the first use (44km) appearance of pilling at the waistband of the pants. I brought it back to the store, they exchanged it for me without difficulty, specifying that if it happened again I would be refunded. Apart from this premature wear, super comfort and great heat supply.
Great product
Perfect
I am writing now because I tried the product today. 16 km. running, wind, 8-9 degrees temperature but it feels like lower degrees. The blouse is extremely comfortable, feeling soft on the body, warm and wicks away moisture, the sleeves replace gloves for short distances. I am happy with the purchase.
Hello, I find that it fits very poorly at the shoulders and upper arms..biceps triceps. Yours truly. I think I have the right size.
Stylish, excellent item.
Conforms to the description
OK.
I use it on late spring or early autumn days and it maintains the temperature well and has reasonable breathability
Size Guide

Additional Product Information
Composition
Main fabric: 89.0% Wool, 11.0% Polyamide ; Yoke: 9.0% Polyamide, 63.0% Wool, 4.0% Elastane, 24.0% Acrylic
Information about the materials used
This t-shirt has a hybrid design to enable the optimal balance between warmth and breathability.We use 2 fabrics:- the main fabric made from 89% merino and 11% polyamide (for durability). 240 g/sqm- the fabric used as inserts, particularly the back and inside of the forearms is made from 63% merino, 24% acrylic (facilitates drying), 9% polyamide (for durability) and 4% elastane. 260 gr/sqm
Tip before use
For a softer feel, wash your t-shirt before first use.
How to wash your merino wool t-shirt?
We recommend that you machine wash your MT900 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!https://support.decathlon.co.uk/how-to-maintain-a-merino-wool-garment
Origin
Imported
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Men's Merino Wool Long-Sleeved Backpacking T-Shirt - MT900
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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.
