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Men's Mountain Trekking Merino Long-Sleeved T-Shirt Zip Collar Trek 500 - Black

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Men's Mountain Trekking Merino Long-Sleeved T-Shirt Zip Collar Trek 500 - Black
This merino wool T-shirt keeps the body at a pleasant temperature in all seasons. Ideal for trekking over several days!

Looking for a comfortable anti-odour base layer? This long-lasting reinforced merino wool T-shirt is ideal. With easy air cooling thanks to its zipped collar.

A photo of the Men's Mountain Trekking Merino Long-Sleeved T-Shirt Zip Collar Trek 500 - Black in use

Odour control

The merino wool (86%) naturally helps prevent unpleasant odours


Merino wool T-shirt to provide extra warmth as a first layer

Abrasion resistance

Wool fibre surrounded by polyamide yarn for protection

Moisture management

The high absorbency of wool helps keep the body dry


Merino wool is breathable and helps maintain the right body temperature

Freedom of movement

The natural stretch of wool offers unrestricted movement


The T-shirt weighs just 243 g in size L. Fabric 190 g/sqm


Ultra-fine Merino wool (18.5 microns). It’s very soft and doesn't itch


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Product Reviews

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16 review(s)
Write review Men's Mountain Trekking Merino Long-Sleeved T-Shirt Zip Collar Trek 500 - Black
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Superb all rounder

A lightweight base layer that ticks all the boxes for outdoor activities

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Perfect For EBC

Used for EBC in Mar 2021. Wore it as a base layer from Dengbouche to EBC and back to Namche. Continuous wear for eight days and it stayed fresh. Great warmer.

Most technical product

Most technical and recommend product for several days trek go for this

High quality merino wool base layer

Great base layer and high quality for the price. Similar to IceBreaker but half the price.

Very good

Very comfortable

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Excellent Trekking Base Layer

Very happy with this T-Shirt. When using the sizing tool ensure you select tight for the right fit, when the merino sits right on your skin it works perfectly. The shirt it made of a great blend of merino wool and and a Polyamide, I love the design as the yoke of the shirt is actually made with more merino where it gets the sweatiest. Great zip to vent during exercise and a durable weave all around with tough seams. It is very comfortable to wear, enough length to tuck in, it insulates well and breathes superbly, anti microbial properties mean you can wear it longer than you should be comfortable with as the sweat evaporates whilst still insulating. Already bought a second one.

Trekking long sleeved T shirt

Very good one

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No comment cause hvnt tried

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Hi Wai Kiu,

Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!

We sincerely appreciate your insight! It's also our pleasure to ensure you have the best experience with our products! 

We can't wait to offer you more and better products in order to delight your sport experiences! 

If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!

Stay healthy!


Decathlon Hong Kong Hiking & Trekking Team

Warm Skin

Suits my skin, smell nice and feels warm. Can be used as base layer, though expensive. Hope, it will not fillet/corn out at elbow area.

Great value

inexpensive merino wool base layer - Great!

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Not worth the price

Please improve quality. I bought the product to wear during winters in the UK. Although it is made of merino wool and does the job, there is a big hole in one of the sleeves.


Hello Siddharth

Thank you for your valuable review. We are sorry that you were not satisfied with the product. Could you please write back to me with the photos of the product and If the whole was there during the time of purchase. So that we can help you with the best possible solution.


Product Trainer and Passionate Backpacker

My turning point

No advice yet but for me is great !

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Excellent value!

Merino wool base layer at less than half the price of Icebreaker. 2 sets (top and bottom) served me very well over 8 days walking around in Tokyo this winter. Good product, highly recommended!

Hello C T

Thank you for taking the time to leave a review for the Mountain Trekking Merino Wool Top. We are glad that this product served you well! Yes I believe our products are not only affordable but it is technical as well. Hope to see you around in our stores soon!


Your Smiley Hiker,
Hiking Sports Leader

This was again an awesome and value for money purchase. It kept me warm in the chilling, windy, rainy, snowy winter of Europe

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Men's Mountain Trekking Merino Long-Sleeved T-Shir

Very warm on the bicycle, good cuff for hiding the zip

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Product information


Main fabric

  • 14% Polyamide
  • 86% Wool


  • 2% Polyamide
  • 98% Wool

What are our commitments in favour of animal welfare?

We only use wool from Merino sheep bred 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:

How did we improve the durability of our merino wool t-shirts?

We use a BETA-SPUN yarn structure, i.e. the merino wool fibres are coated with a fine sheath of polyamide filaments to protect them from rubbing and cuts, without affecting the properties of the wool.

Odour control

Wool from Merino sheep naturally controls the spread of bacteria that cause bad smells. This Merino wool T-shirt can therefore be wornseveral days in a row and means you can take less clothes when trekking making for a lighter backpack!

Reducing the "freezing effect"

After exercise and heavy sweating, 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 quicker.

Advice before use

To make the component feel softer, don't hesitate to wash your T-shirt before first use.

How to wash your merino wool t-shirt

We recommend that you machine wash your Merino wool tee-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:

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