ODLO Thermal Merino 200 Men's Base Layer Top, Long Sleeve, Crew Neck, Black, Size M

For cold-weather athletes who refuse to compromise on warmth or comfort, the ODLO Thermal Merino 200 base layer top stands apart with its 100% mulesing-free Merino wool construction. At 200 g/m², this fabric delivers a rare balance of substantial insulation and natural breathability, keeping you warm without overheating during high-output winter activities. The regular fit and flatlock seams ensure a smooth, chafe-free layer that works as a standalone top in milder cold or as a foundational piece under heavier midlayers.

Highlights

• 100% Merino wool (200 g/m²) for exceptional warmth-to-weight ratio
• Naturally thermoregulating: keeps you warm when it's cold, cool when it's warm
• High moisture-wicking capacity moves sweat away from the skin
• Inherent anti-odor properties allow multiple wears between washes
• Flatlock seams reduce friction and prevent chafing during movement
• Mulesing-free wool sourced with animal welfare in mind

In daily use

Whether you're skinning up a mountain, snowshoeing through fresh powder, or simply walking the dog on a frosty morning, the Merino 200 adapts to your effort level. Its soft, non-itchy feel against the skin means all-day comfort, while the crew neck and long sleeves provide reliable coverage. The fabric's breathability prevents clamminess, and the odor resistance keeps you feeling fresh even after a full day of activity. Machine washable on a wool cycle, this top is easy to care for and built to last through many winters.

Full specifications

• Material: 100% Merino wool (mulesing-free)
• Material weight: 200 g/m²
• Product type: Base layer top
• Neckline: Crew neck
• Sleeve length: Long sleeve
• Gender: Men's
• Size: M
• Fit: Regular fit
• Thermal properties: Excellent warmth-to-weight ratio, natural thermal regulation
• Moisture management: High moisture-wicking capabilities
• Odor control: Natural anti-odor properties
• Breathability: High
• Seam type: Flatlock seams for reduced chafing
• Intended use: Winter sports, hiking, everyday cold weather wear
• Care instructions: Machine washable (wool cycle)
• Fabric feel: Soft, non-itchy
• Seasonality: Winter, cold weather

Final note

For those who value natural performance and ethical sourcing, the ODLO Thermal Merino 200 is a trustworthy companion for every cold-weather adventure.