Underwear

With new patterns, a fresh look, and even more comfort, the Men's Merino 250 Base Layer Pattern Crew is being its best self. They've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps minimize chafing. Add one of the best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking. Men's Trim Fit.

A perfect base layer on cooler morning commutes or year-round travel. Made from breathable merino rib, Icebreaker's 175gm Everyday Leggings move with you, keeping you warm in cooler weather and cool in warmer conditions. A naturally odour resistant fabrication allows for multi-day wear, ideal for journeys further afield. Men's Fitted profile.

Active men’s base layer bottoms made from 100% merino wool jersey, the 200 Oasis Leggings are Icebreaker's best-selling long underwear. Men's Fitted profile.

Icebreaker's best-selling active baselayer bottoms made with their ultra-comfortable 100% merino jersey fabric and an updated design for improved comfort, the 200 Oasis Leggings w/ Fly are the perfect foundation for your everyday cold-weather layering system. The Oasis fabric is not only insulating and highly breathable, but it resists odors during extended use. The slim fit and gusseted construction provide unrestricted freedom of movement, while the brushed elastic waistband and flatlock seams throughout eliminate chafing when you’re on the move. Men's Trim Fit.

Icebreaker's classic reliable merino baselayer bottom in a mid-calf design, the 200 Oasis Legless is designed for use with ski boots, mountain boots and other high-cuff winter footwear. The updated design features a gusset for comfort and mobility, and short-leg length to eliminate uncomfortable bunching. The 100% merino jersey fabric offers super-soft, next-to-skin comfort, incredible breathability and natural odor resistance. The brushed elastic waistband and flatlock seams prevent irritation during high-intensity days outside. Men's Fitted profile.

Midweight men’s merino wool base layer leggings perfect for skiing, winter hiking or cold-weather layering, the 260 Tech Leggings are technical long underwear bottoms that feature a gusseted construction and breathable, odor-resistant fabric. Men's Fitted profile.

A warmer midweight version of Icebreaker's best-selling Oasis Leggings, perfect for frigid days on the trails or the mountain, the updated 260 Tech Leggings w/ Fly feature a 100% merino wool fabric for premium softness, insulation and breathability. These odor-resistant baselayer bottoms also feature a gusseted construction for ample range of motion, and the brushed elastic waistband and flatlock stitching throughout eliminate chafing when you’re on the move. Men's Trim Fit.

Icebreaker's versatile baselayer design in a midweight, zip-neck design, the updated 260 Tech Long Sleeve Half Zip is a go-to foundation for cold-weather layering, whether you’re scoring a powder day at the resort or enjoying a quiet hike through the woods. Made from 100% merino wool jersey fabric with a deep front zip that quickly dumps excess heat, the Tech LS Crewe insulates next-to-skin, breathes to regulate temperature and resists odors on active days or long stints away from home. Gusseted underarms, forward side seams and offset shoulder seams improve range of motion and prevent chafing when you’re moving fast or wearing a pack. Men's Trim Fit.

A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Crewe is a go-to piece for winter layering, made with 100% merino wool. Men's Trim Fit.

Classic boxer briefs made with a stretchy slim fit and our corespun fabric, the Anatomica Boxers are supportive and comfortable for daily life and active pursuits. Men's Trim Fit.

Built with a super-soft, stretchy and highly durable merino wool blend, and outfitted with the support and comfort you need for both daily life and weekend adventures, the Anatomica Briefs are the underwear you’ve been searching for. With an exclusive Icebreaker supportive fit that makes them even more comfortable, the Anatomica Briefs feature corespun fabric, merino wool fibers wrapped around a nylon core, for increased durability, strength, and next-to-skin softness. Flatlock seams eliminate chafing when you’re on the move, and the contoured pouch offers additional support. Men's Trim Fit.

Icebreaker's classic, go-to boxer brief in cool-lite™ fabric, the Anatomica Cool-Lite Boxers have the support you need for daily life and weekend adventures, with an exclusive icebreaker fit that makes them the most comfortable pair in your underwear drawer. Breathable, moisture-wicking cool-lite™ blends natural TENCEL™ and stretchy spandex with corespun fibers—nylon threads wrapped in merino wool for the ultimate combination of durability and next-to-skin softness. Flatlock seams eliminate chafing when you’re on the move, and the contoured pouch offers additional support. Men's Trim Fit.

A soft, stretchy base layer top for active layering and everyday comfort, the slim-fit Anatomica Long Sleeve Crewe features our ultralight 150gm merino wool corespun fabric. Men's Trim Fit.

An ultralight T-shirt built with a super-soft, stretchy and highly durable merino wool blend, the Anatomica Short Sleeve V provides the versatile, breathable comfort you need for both active pursuits and daily life. With a tried-and-true fit that makes this shirt a daily favorite, the Anatomica Short Sleeve V also features corespun fabric, merino wool fibers wrapped around a nylon core, for increased durability and strength while retaining next-to-skin softness. Flatlock seams eliminate chafing when you’re on the move. Men's Trim Fit.

A versatile men’s merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with technical performance. Men's Trim Fit.

Icebreaker`s lightest-weight long sleeve base layer tops are the ideal second skin to keep you comfortable throughout your physical pursuits. Made with breathable and insulating 150gm corespun merino, the Zone Long Sleeve Crewe is perfect for year-round adventures. Whether you are running off-road, biking or just training around the city, it has got just enough LYCRA® to maximise flexibility while its next-to-skin comfort makes it a must have layering piece. Strategically placed merino mesh offers thermo-regulation, while flatlock seams prevent chafing during vigorous movement. Men's Trim Fit.

Icebreaker's lightest-weight long sleeve base layer tops are the ideal second skin to keep you comfortable throughout your physical pursuits. Made with breathable and insulating 150gm corespun merino, the Zone Long Sleeve Half Zip is perfect for year-round adventures. Whether you are running off-road, biking or just training around the city, it has got just enough LYCRA® to maximise flexibility while its next-to-skin comfort makes it a must have layering piece. Strategically placed merino mesh offers thermo-regulation, while flatlock seams prevent chafing during vigorous movement. Men's Trim Fit.

Icebreaker's lightest-weight short sleeve base layer tops are the ideal second skin to keep you comfortable throughout your physical pursuits. Made with breathable and insulating 150gm corespun merino, the Zone Short Sleeve Crewe is perfect for year-round adventures. Whether you are running off-road, biking or just training around the city, it has got just enough LYCRA® to maximise flexibility while its next-to-skin comfort makes it a must have layering piece. Strategically placed merino mesh offers thermo-regulation, while flatlock seams prevent chafing during vigorous movement. Men's Trim Fit.

Icebreaker's technical, cold-weather base layer top for highly aerobic days, the 260 Zone Long Sleeve Crewe features zoned ventilation panels for active temperature regulation and ample breathability. Men's Trim Fit.

Technical, cold-weather base layer bottoms for highly aerobic days, the 260 Zone Leggings feature zoned ventilation panels for active temperature regulation and ample breathability. Men's Fitted profile.

The LIFA® Merino Lightweight collection is versatile and ideal for all cold weather activities. We used our proven 2-in-1 layer system, combining LIFA® Stay Warm moisture management and the natural warmth of merino in an extremely lightweight half-zip. LIFA® Merino LIGHTWEIGHT delivers all the great benefits of merino wool fibers plus the unique wicking properties of technical LIFA® fibers. Men's Trim Fit.

A unique 2-in-1 base layer with 100% merino wool exterior and 100% LIFA® Stay Warm Technology interior LIFA® MERINO MIDWEIGHT is perfect for any type of activity in cold weather. A unique 2-in-1 base layer with 100% merino wool combined with LIFA® Stay Warm Technology in a 2 layer construction. LIFA® Merino MIDWEIGHT delivers all the great benefits of merino wool fibers plus the unique properties of technical LIFA® fibers. Men's Fitted Profile.

A unique 2-in-1 base layer with 100% merino wool exterior and 100% LIFA® Stay Warm Technology interior LIFA® MERINO MIDWEIGHT is perfect for any type of activity in cold weather. A unique 2-in-1 base layer with 100% merino wool combined with LIFA® Stay Warm Technology in a 2 layer construction. LIFA® Merino MIDWEIGHT delivers all the great benefits of merino wool fibers plus the unique properties of technical LIFA® fibers. Men's Fitted Profile.

A unique 2-in-1 base layer with 100% merino wool exterior and 100% LIFA® Stay Warm Technology interior LIFA® MERINO MIDWEIGHT is perfect for any type of activity in cold weather. A unique 2-in-1 base layer with 100% merino wool combined with LIFA® Stay Warm Technology in a 2 layer construction. LIFA® Merino MIDWEIGHT delivers all the great benefits of merino wool fibers plus the unique properties of technical LIFA® fibers. Men's Trim Fit.