Meet the Icebreaker 200 Oasis leggings, designed as a men’s base layer to provide temperature regulation and moisture management during outdoor activities. They sit close to the skin, helping you stay comfortable whether you’re hiking at dawn or layering up for a cold-weather expedition.
Crafted entirely from merino wool, these leggings balance warmth with breathability, wicking sweat away to keep you dry on long days in the field. The slim fit follows your movements without bunching under outer layers, while flatlock seams lie flat against your skin to minimize chafing when you’re on the move.
Merino wool’s fine fibers trap air to insulate without overheating and can absorb moisture vapor before it condenses, so you stay comfortable across changing conditions. Flatlock seams join fabric panels with minimal bulk, reducing friction points. On top of performance benefits, these leggings are fully recyclable and biodegradable, made without synthetic fabrics or plastic microfibers to limit environmental impact.
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Icebreaker says about the 200 Oasis Leggings Mens
The benchmark against which all others are judged, the Merino 200 Oasis Leggings are icebreaker's ultra-comfortable base layer bottoms that make the perfect foundation for your everyday cold-weather layering system. Made with 100% merino wool jersey fabric (excluding waistband) that’s breathable, insulating, and odor-resistant, the Oasis features a slim fit and gusseted construction for unrestricted freedom of movement. The brushed elastic waistband and flatlock seams throughout eliminate chafing.
Inspired by nature, icebreaker harnesses the performance qualities of natural fibers to offer an alternative to clothing based on petrochemical synthetics. Merino is an annually renewable fiber that naturally resists odors, keeps you cool when it’s hot and warm when it’s not, and lets your skin breathe for comfort all day, every day.