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.
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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