Icebreaker 200 Oasis Thermal Leggings for Men, XL, Black Merino Wool Base Layer

Step onto a frosty trail at first light with the Icebreaker 200 Oasis Thermal Leggings, the go-to base layer for men who refuse to let cold weather dictate their plans. These leggings deliver next-to-skin comfort and reliable warmth without the bulk, making them a staple for hikers, skiers, and daily commuters alike. Whether you're facing a pre-dawn summit push or just need an extra layer for the morning commute, the 200 Oasis is engineered to perform when the mercury drops.

Key specifications

• Brand: Icebreaker
• Model: 200 Oasis
• MPN: 162287
• EAN: 9420058527419
• Material: 100% Merino Wool (ZQ-certified)
• Fabric Weight: 200 g/m²
• Fit: Slim Fit
• Size: XL
• Colour: Black
• Layer Type: Base Layer
• Seam Construction: Flatlock Seams
• Gusseted Crotch: Yes
• Waistband: Brushed Elastic
• Gender: Men's
• Season: 3-Season (Cool to Cold)
• Breathability: High
• Moisture Wicking: Yes
• Odor Resistance: Natural
• Care: Machine wash cold, line dry in shade

Why choose it

Merino wool is nature's miracle fiber, and the Icebreaker 200 Oasis leggings harness it perfectly. Unlike synthetic base layers, Merino regulates body temperature effortlessly, keeping you warm when it's cold and cool when you heat up. It absorbs moisture vapor rather than trapping sweat, so you stay dry and comfortable even during intense activity. The natural lanolin in the wool also makes it odor-resistant, meaning you can wear these leggings for days on end during a backcountry trip without worrying about smelling fresh. The flatlock seams minimize chafing, while the gusseted crotch allows full freedom of movement—essential when you're hiking steep switchbacks or making quick turns on the slopes.

Ideal use cases

• Cold-weather hiking and trekking
• Skiing and snowboarding under your outer layers
• Winter running and outdoor training
• Everyday wear as a thermal layer on frigid days
• Camping and mountaineering

Good to know

This base layer is part of Icebreaker's core 200 Oasis line, renowned for its versatility and durability. The ZQ certification ensures that the Merino wool is ethically sourced and farmed to high environmental and animal welfare standards. To maintain the fabric's performance, machine wash cold on a gentle cycle, avoid fabric softeners, and line dry in shade—never tumble dry. With proper care, these leggings will deliver years of comfortable thermoregulation, making them a smart investment for anyone who spends time outdoors in cold conditions.