Pros & Cons

• Excellent warmth without feeling heavy

  Midweight Merino blend provides pleasant insulation and comfort on cold days.
• Good moisture management and breathability

  Strategically placed mesh under the arms prevents overheating during exercise.
• Comfortable slim fit with stretch

  Elastane ensures freedom of movement without being constricting, ideal for layering.
• Fit may be narrow

  If in doubt, it's wise to size up for more freedom of movement.
• Merino wool requires careful washing

  Special washing instructions are required to maintain its quality and longevity.

Description

The Mons Royale Men's Olympus Merino Base Layer Long Sleeve 2025 is a midweight thermal shirt made of 97% merino wool and 3% elastane. This slim-fit thermal shirt offers warmth, excellent moisture management, and breathability thanks to merino mesh panels. Ideal as a base layer for active winter sports in cold temperatures.

Features

Material & Features: Made from 97% high-quality Merino wool and 3% elastane, this thermal shirt offers a good balance of insulation, stretch, and durability. Merino wool provides excellent moisture management and prevents unpleasant odors, while the elastane provides comfortable stretch.

Weight & Temperature Range: With a fabric weight of 250 gsm, this thermal shirt falls into the midweight category. It is suitable for cold conditions and works well as a warm base layer that you can wear solo or as an underlayer.

Fit & Size Guide: The slim fit with raglan sleeves follows the body's shape and provides excellent freedom of movement. The thermal shirt is quite slim-fitting, so if in doubt, Mons Royale recommends choosing a size larger for more comfort.

Construction & Comfort: Flatlock seams prevent irritation and chafing, and the raglan sleeves improve the fit and freedom of movement. Thumbholes provide extra comfort and keep the sleeves securely in place. Half-zip versions facilitate ventilation.

Additional Features: Strategically placed merino mesh panels under the arms provide effective ventilation without heat loss. The use of ZQRX-certified Merino wool guarantees responsible sourcing.

Why choose this thermal underwear?

Choose the Mons Royale Men's Olympus Merino Base Layer Long Sleeve 2025 if you're looking for a midweight thermal shirt that combines warm insulation with excellent moisture management and durability. The slim fit offers comfort and freedom of movement, with flatlock seams that reduce chafing. Thanks to the breathable mesh panels, you'll stay cool, even during intense activities. This blend of natural materials and thoughtful details makes this thermal shirt perfect for cold winter sports days. At Duijvestein Winterstore, you'll find this quality Mons Royale with excellent advice and service.