Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
Men's Mountain Trekking Merino Wool Base Layer Tights Leggings - MT900
2 different Merino fabrics are used meaning these tights are the best solution to maintain the perfect body temperature in winter. They are also very functional with their zip fly.
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:
- Weight: 7.6 oz (216 g) in size L.
- Warmth: These thick tights (240 g/sqm) made from Merino Wool is comfortable down to 50°F/10°C
- Freedom of movement: Stretch fabric. Crotch gusset
- Softness: Ultra-fine (18.5 microns) and very soft merino wool. Does not itch
Product Videos
Product Features

Warmth
These thick tights (240 g/sqm) made from Merino wool is comfortable down to 10°
Breathability
Helped by the inserts with their inner side weaved in channels
Freedom of movement
Stretch fabric. Crotch gusset
Odor control
The component limits perspiration odours. Laboratory test ISO 17299-3.
Abrasion resistant
Use of a wool yarn protected by a surrounding polyamide yarn
Softness
Ultra-fine (18.5 microns) and very soft merino wool. Does not itch
Weight
Tights weigh just 216 g in size L.
Product Lifestyle Image Gallery
Image Gallery





Questions & Answers
There are no questions
Be the first to post a question
Product Customer Reviews

Very well suited to Canadian trekking
Very good first layer in merino. The look is simple and the material is soft to the touch. I recommend !
Very comfortable
I use it in bivouac or to go to work in winter. Between the cold of a night in the mountains and the heat of my desk at work, merino wool always provides good regulation of body temperature. Never too hot, never too cold: perfect! The fabric is non-irritating. The cut is good (size L for my 1.83 m). No smell, even after several days of use. What comfort!
Very warm
Used with great satisfaction during several nights in bivouac, in a goose feather duvet. Good temperature regulation. Easy to wash and manages odors well even after 3 nights of trekking. Merino wool = great!
Ras
Perfect for cold days
Perfect second skin in cold weather
The elastic fly is a real plus. On the body side, its ribbed appearance increases the volume of trapped air and therefore the heat. Overall the interior is very comfortable, I regularly spend nights with it in a sleeping bag. It also looks a lot tougher than the MT500 (ref 8501932), which ended up with butt holes after a summer of wearing it as tights under ultralight hiking shorts. It remains to test it this summer on a UL hike!
Hello, Pantyhose on top! The fly, not necessarily useful. Good for you
These are soft but they are too delicate. Fabric is coming off after 3-4 times wearing for day hikes. It’s better to go for synthetic base layers instead of the merino layers.
OK.
Good value for money. Meets my expectations for comfort and warmth.
Very good freedom of movement and I was pretty warm overall.
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
These tights benefits from a hybrid design to strike the optimal balance between warmth and breathability.We use 2 fabrics:- the main fabric made from 89% Merino wool and 11% polyamide (for durability). 240 g/sqm- the fabric used for inserts, particularly behind the calves, is made from 63% Merino, 24% acrylic (helps drying), 9% polyamide (for durability) and 4% elastane. 260 gr/sqm
What are the features of these tights?
These tights have an elastic fly. Practical for staying warm and not wasting time during the technical break!
What are our commitments in favour of animal welfare?
We only use wool from Merino sheep raised on farms in South Africa that do not practise mulesing.We decided to build a partnership with a group of breeders (Konsortium Merino) to guarantee respect for animal welfare and the environment.We have full traceability which allows us to guarantee the origin of the wool.More information: https://www.forclaz.co.uk
Tip before use
For a softer feel, wash your t-shirt before first use.
How do i wash my merino wool tights?
We recommend that you machine wash your MT900 Merino boxers 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
Origin
Imported
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Men's Mountain Trekking Merino Wool Base Layer Tights Leggings - MT900
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
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.
