The men's WOOLCANO Merino 100% SET0540 thermal underwear set in green is designed for year-round outdoor use. The model made from merino wool ensures breathability and freshness even during prolonged wear. The ergonomic cut supports the body's natural thermoregulation.
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Men's thermal underwear set WOOLCANO Merino 100% SET0540 green (WLC-B5AP004-ARM)
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 green has been designed for men who expect thermal comfort, freshness, and freedom of movement in all conditions. It works well as a base layer during trekking, skiing, cross-country running, and everyday activities. This is a year-round set that works well with the body regardless of the ambient temperature.
Merino wool – natural insulation and breathability
The model is made entirely from merino wool sourced from certified origins. This material is skin-friendly, does not cause irritation, and retains freshness even with prolonged use. Merino fibres effectively wick moisture away and maintain an optimal skin microclimate during intense movement.
4-way stretch technology – full freedom of movement
The applied 4-way stretch technology allows the fabric to stretch in four directions. This means the clothing adapts to the silhouette without restricting the wearer’s mobility. This solution is especially useful during outdoor activities requiring great freedom and flexibility.
Design focused on user comfort
The set features offset seams under the armpits, which reduce the risk of chafing and improve comfort during arm movement. The elastic waistband in the trousers stabilises the clothing on the body, and the round neckline of the shirt retains its shape even after many washes. The close-fitting cut supports the fabric’s function and increases wearing comfort.
Durability and functionality in the field
The set works well as a base layer that protects the body from cooling down and overheating. The material dries quickly and does not lose its properties even with frequent use. The set combines durability and functionality with a high level of comfort during outdoor activities.
Sustainable production and RWS certification
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 green is a thoughtful solution for active people who prioritise natural materials and functional details. Merino wool supports thermoregulation and hygiene, while 4-way stretch technology ensures maximum freedom of movement. The set is made in accordance with RWS standards, guaranteeing responsible production.
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 – features:
• Set intended for year-round sports and outdoor activities;
• Shirt and trousers form a coherent base layer set;
• Merino wool sourced from RWS certified origins;
• Breathable, antibacterial, and skin-friendly material;
• Natural thermal insulation and quick-drying properties;
• 4-way stretch technology increasing elasticity in all directions;
• Fabric’s ability to stretch without losing properties;
• Offset seams under the armpits reducing the risk of chafing;
• Round neckline resistant to deformation and stretching;
• Elastic waistband in trousers stabilising the clothing’s fit;
• Close-fitting cut improving fit and comfort of movement;
• Material resistant to deformation and durable with frequent wear;
• Suitable for trekking, running, and winter sports;
• Set retains freshness even during intense activity;
• Can be washed at low temperatures without losing shape;
• Fibres obtained in accordance with animal welfare standards;
• Model made without synthetic blends;
• Sustainable production process compliant with RWS certification.
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 green has been designed for men who expect thermal comfort, freshness, and freedom of movement in all conditions. It works well as a base layer during trekking, skiing, cross-country running, and everyday activities. This is a year-round set that works well with the body regardless of the ambient temperature.
Merino wool – natural insulation and breathability
The model is made entirely from merino wool sourced from certified origins. This material is skin-friendly, does not cause irritation, and retains freshness even with prolonged use. Merino fibres effectively wick moisture away and maintain an optimal skin microclimate during intense movement.
4-way stretch technology – full freedom of movement
The applied 4-way stretch technology allows the fabric to stretch in four directions. This means the clothing adapts to the silhouette without restricting the wearer’s mobility. This solution is especially useful during outdoor activities requiring great freedom and flexibility.
Design focused on user comfort
The set features offset seams under the armpits, which reduce the risk of chafing and improve comfort during arm movement. The elastic waistband in the trousers stabilises the clothing on the body, and the round neckline of the shirt retains its shape even after many washes. The close-fitting cut supports the fabric’s function and increases wearing comfort.
Durability and functionality in the field
The set works well as a base layer that protects the body from cooling down and overheating. The material dries quickly and does not lose its properties even with frequent use. The set combines durability and functionality with a high level of comfort during outdoor activities.
Sustainable production and RWS certification
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 green is a thoughtful solution for active people who prioritise natural materials and functional details. Merino wool supports thermoregulation and hygiene, while 4-way stretch technology ensures maximum freedom of movement. The set is made in accordance with RWS standards, guaranteeing responsible production.
Men’s WOOLCANO Merino 100% Thermal Underwear Set SET0540 – features:
• Set intended for year-round sports and outdoor activities;
• Shirt and trousers form a coherent base layer set;
• Merino wool sourced from RWS certified origins;
• Breathable, antibacterial, and skin-friendly material;
• Natural thermal insulation and quick-drying properties;
• 4-way stretch technology increasing elasticity in all directions;
• Fabric’s ability to stretch without losing properties;
• Offset seams under the armpits reducing the risk of chafing;
• Round neckline resistant to deformation and stretching;
• Elastic waistband in trousers stabilising the clothing’s fit;
• Close-fitting cut improving fit and comfort of movement;
• Material resistant to deformation and durable with frequent wear;
• Suitable for trekking, running, and winter sports;
• Set retains freshness even during intense activity;
• Can be washed at low temperatures without losing shape;
• Fibres obtained in accordance with animal welfare standards;
• Model made without synthetic blends;
• Sustainable production process compliant with RWS certification.
Product Details

Elastic waistband – stabilisation of trousers and comfort in movement
The band adapts to the figure without constriction. It keeps the clothing in place during exertion. It supports the function of the entire set.

Antibacterial properties – odour reduction and enhanced hygiene
Merino fibres prevent the growth of odour-causing bacteria. The underwear remains fresh even after prolonged use. This is important during trips and training sessions.

Offset seams under the arms – better protection against chafing.
The seams do not pinch or cause irritation in sensitive areas. They improve comfort, especially when using the arms. This is important during prolonged use.

4-way stretch technology – flexibility in four directions
The fabric stretches in all directions, allowing for unrestricted movement. The wearer enjoys complete freedom during intense activity. The clothing adapts to the body in every position.
Top
Warm underwear, good quality
warm set
The delivery was still before we left for the chilly surroundings on our sea
Super
Bought as a gift for my dad, delighted with the product.
Kpl.
Ok
Kpl.
Ok
Thin but warm.
I bought it for my teenage son. The size is even a little bigger. But due to the fact that the material is thin, it is almost invisible under clothes. The child didn't notice anything at all when wearing them - he put them on and forgot. The school has rooms with poor heating - he is warm and comfortable. It does not collect odours, and it tolerates washing on the Wool cycle. The only drawback is the price, but I was lucky enough to buy it at a discount.
Super
Gift! Very pleased with the set.
Thermo-active underwear
Ok
Thermo-active underwear
Ok
Warm and comfortable
All in good order. Warm, snug and comfortable.
The perfect set
I bought my son-in-law for a Christmas present. He runs a lot. He tested it on the first day of Christmas and came back delighted. Merino is merino, I use it myself on the e-MTB.
Warm
Underwear carefully made, let's see on the slopes if it lives up to the promised parameters
Brilliant
When I heard about the benefits of merino underwear I couldn't believe it, but it's all true and I found out for myself. A brilliant undergarment for prolonged physical activity - it keeps your body warm all the time, and when you sweat, the material 'sheds' the moisture to the outside and your skin and underwear stay dry, so your body stays warm. I tested it in the field for 24 hours in December and it kept me warm around the clock - during physical activity, at rest stops, including those of a few hours (outside, of course, the layers of clothing changed depending on the activity). I have a comparison with ordinary thermal underwear and hope never to go back to it again, the material once sweaty was wet all the time and the body then cooled down quickly. This set of merino underwear is really recommendable and great value for money. The only downside is that it gets wrinkled after washing in the washing machine (at 20 degrees C), for the future though I think it will be hand washed.
Revelation!
Tested on a ski tour. Super !
Ideal
Size ideal for a slim man over 176
I recommend
Product of very good quality, thin but the velvet fulfils its properties
I am satisfied
I am satisfied. It has fitted in nicely.
Good set
A nice nice touch set that looks good. I took size M instead of the standard L, at 192cm and slim figure and the M fits well. For bigger frosts you need to take something with a bigger weight.
Thermal underwear
Super warming perfect for everyday use recommend size smaller 184 s fits perfectly
I recommend
Underwear set ?% merino super quality.
Does not bite. I recommend ?Satisfaction
The material is high quality
Super
Excellent quality
Product OK
A small minus for the sizing... The size given is definitely understated. I took a size L for 182cm tall, 85kg. Too big. I should exchange for an M but unfortunately I needed to use what was already there ;)
Super
Very good quality at a good price!
Super
I'm 185/93 but not some athlete:) At first I bought an XL - huge. I exchanged for an L, but I could probably also fit into an M because the L is not that tight at all. Take a size down.
Recommend
Keep warm, I use them super often
I recommend
Great for skiing. You can't feel it on you :)
High-quality product
The first set attracted dust even though it should have been anti-static. I contacted WOOLCANO and received a new set for free - this one was already fine. Great customer service and very good quality underwear. Highly recommend.
Revelation
I thought I would never wear anything made of merino wool. Everything I tried gave an itchy/stinging sensation. This is completely absent in this case. A very good product.
Exceptional
Extremely fine, elasticated and lightweight material. 5/5
Review this product

Men's thermal underwear set WOOLCANO Merino 100% SET0540 green
Find out how to properly care for your product, how to clean it and what to avoid in order to prolong its life and keep it looking great for longer.
- Do not dry-clean
- Dry at low temperature
- Machine washable
Men's thermal underwear set WOOLCANO Merino 100% SET0540 green
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