Icebreaker 200 Oasis Men's Thermal Leggings – 100% Merino Wool Midweight Base Layer (Midnight Navy, Size L)

Built around Icebreaker's renowned 200 Oasis jersey fabric, these men's thermal leggings deliver natural comfort and performance for cold-weather layering. Made entirely from ethically sourced ZQ-certified merino wool, the 200 Oasis fabric uses a midweight 200 g/m² knit that balances warmth, breathability, and moisture management for three-season use.

Highlights

• 100% ZQ-certified merino wool for natural temperature regulation and odour resistance
• Midweight 200 g/m² knit – ideal for autumn, winter and spring
• Brushed elastic waistband with a functional fly for convenience
• Gusseted construction and flatlock seams ensure full mobility and zero chafing
• Slim fit designed for comfortable layering under outer layers

In daily use

Whether you're hitting the slopes, hiking a cold trail, or simply braving the commute, these leggings act as a reliable base layer. The merino fibres actively wick moisture away from the skin, while naturally controlling your body temperature so you stay comfortable when the mercury drops. Thanks to flatlock seam placement, you can move freely without irritation, even during high-output activities.

Full specifications

• Product type: Thermal base layer leggings
• Gender: Men's
• Size: Large (L) – inseam approx. 79 cm (31.1 in)
• Colour: Midnight Navy
• Material: 100% Merino Wool (ZQ-certified)
• Fabric weight: 200 g/m² (midweight)
• Fit: Slim fit
• Waistband: Brushed elastic
• Features: Functional fly, gusset, flatlock seams
• Performance: Breathable, moisture-wicking, odour-resistant, temperature-regulating
• Care: Machine wash cold (30°C), line dry in shade
• Season: Autumn, Winter, Spring
• Best use: Winter sports, hiking, layering, everyday wear

Final note

Icebreaker's 200 Oasis collection has earned its place as a wardrobe staple for outdoor enthusiasts. These thermal leggings offer dependable performance with a conscious footprint. If you value natural materials and functional design, they're a smart investment for your cold-weather kit.