Underwear

When you need the performance of Merino without the bulk, pull on a pair of these Intraknit Merino 200 Bottoms. 3D-knit articulation adds an enhanced fit and provides the ultimate in movability. Merino Sport Yarn helps provide quicker dry times, odor resistance, and durability, while targeted knit insulation and ventilation help keep you warm and dry, no matter if you're out for a training run, skate-skiing, or heading into the backcountry for the ultimate hut trip.

This minimalist-style crew is anything but insignificant. It is a lightweight, super-moveable top, perfect for all of your sweatiest cold-weather activities. With Merino Sport yarns and gender-specific ventilation perfectly placed to maximize thermoregulation and breathability in high-intensity activities, it helps amplify moisture management, movement, and comfort.

Before you head out on your yurt trip or go for an afternoon skate-ski, throw on our Men's Merino Sport 250 Bottom and enjoy Merino comfort and performance. Our minimal Merrow seam construction provides superior durability while keeping super-soft material next to skin. Our warmest Merino/poly blend helps move moisture, dries quickly, and holds its shape, no matter how sweaty you get during your expedition. Gender-specific, body-mapped panels of lighter fabric offer additional breathability, while reflective elements help provide additional visibility in low-light conditions.

Zip up and head out this winter with a layer that provides warmth, comfort, and performance—the Men's Merino Sport 250 Long Sleeve 1/4 Zip tee. Smartwool's warmest Merino/poly blend will help move moisture away from skin as you heat up, and it will dry quickly and hold its shape no matter how sweaty you get during your workouts. For even more breathability, they've added gender-specific, body-mapped panels of mesh fabrics. Minimal Merrow seam construction provides superior durability while keeping super-soft material against your skin, and thumb loops provide a secure fit.

The weather may be cold outside, but you don't let that keep you from getting out and working hard. And if you're looking for a trustworthy companion on your adventures, throw on a layer that won't let you down—the Men's Merino Sport 250 Long Sleeve Crew. Merino Sport fabric has all the benefits of Merino—breathability, temperature regulation, and odor resistance—with the added quick dry time and durability of polyester. Gender-specific, body-mapped panels of mesh fabric provide even more breathability, while integrated thumbholes provide additional coverage as you head out and take on the winter.

The wind is howling, snow is falling, and the temperature is dropping. Sounds like a perfect day for a run or skate-ski in our Men's Merino Sport 250 Wind 1/2 Zip. Our warmer Merino/poly blend helps move moisture, dries quickly, and holds its shape during high-sweat activities in colder weather. A windproof front panel helps provide increased protection against the elements, while integrated thumbhole openings allow you to really dial up the warmth, even if the weather is working against you.

Whether you're running in frigid temps or skate-skiing in blustery winds, our Men's Merino Sport 250 Wind Boxer Brief keeps you comfortably covered. Smartwool's warmest Merino/poly-engineered material helps move moisture, dries quickly, and holds its shape during your highest-intensity activities. A windproof front panel provides increased protection as temps drop. And minimal Merrow seam construction provides superior durability while keeping super-soft Merino next to skin.

Blending the remarkable properties of Merino wool and PRIMALOFT®, this baselayer is designed for active use in cold conditions. Premium Merino wool draws vapour sweat away from the body whilst high quality PRIMALOFT® yarns wick liquid sweat across the outer surface, allowing it to dry quickly.

Blending the remarkable properties of Merino wool and PRIMALOFT®, this baselayer is designed for active use in cold conditions. Premium Merino wool draws vapour sweat away from the body whilst high quality PRIMALOFT® yarns wick liquid sweat across the outer surface, allowing it to dry quickly.

Blending the remarkable properties of Merino wool and PRIMALOFT®, this baselayer is designed for active use in cold conditions. Premium Merino wool draws vapour sweat away from the body whilst high quality PRIMALOFT® yarns wick liquid sweat across the outer surface, allowing it to dry quickly.

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. FEATURES: Corespun fabric for enhanced durability, LYCRA® content for stretch and mobility, Zip neck collar for temperature regulation, Strategically placed merino mesh for ventilation, Flatlock seams prevent chafing, Raglan sleeve construction for mobility, Underarm gusset for comfort and mobility, Dropped front and back hem for added coverage, Center back length: 74.8cm/29½", size L, Icebreaker heat transfer logo FABRIC: Body: 83% Merino Wool/ 12% Nylon/ 5% LYCRA® Eyelet: 85% Merino Wool/ 14% Nylon/ 1% LYCRA®

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. INSEAM: Large = 77.2cm / 30½" FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Odour Resistant, Breathable, Moves with you FEATURES: Rib fabric provides stretch and comfort, Icebreaker branded brushed elastic waistband, inseam: 77.2cm/30½", size L FABRIC WEIGHT: 175 Ultralight FABRIC: 100% Merino Wool

Active men’s base layer bottoms made from 100% merino wool jersey, the 200 Oasis Deluxe Leggings are an updated version of Icebreaker's best-selling long underwear. FEATURES: Icebreaker branded brushed elastic waistband Flatlock seams prevent chafing Gusset for comfort and mobility FABRIC CONTENT: 100% Merino Wool

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 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. INSEAM: Large = 78.1cm / 30¾" FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Odour Resistant, Breathable, Warm FEATURES: Icebreaker branded brushed elastic waistband, flatlock seams prevent chafing, gusset for comfort and mobility, inseam: 78.1cm/30¾", size L FABRIC WEIGHT: 200 Lightweight FABRIC: 100% Merino Wool

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. FEATURES: Updated design, Icebreaker branded brushed elastic waistband, Flatlock seams prevent chafing, Contoured pouch with functioning fly, Gusset for comfort and mobility, Inseam: 78.1cm/30¾", size L FABRIC: 100% Merino Wool

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. INSEAM: Large = 60cm / 23½" FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Odour Resistant, Breathable, Warm FEATURES: Icebreaker branded brushed elastic waistband, flatlock seams prevent chafing, gusset for comfort and mobility, inseam: 60cm/23½", size L FABRIC WEIGHT: 200 Lightweight FABRIC: 100% Merino Wool

The 200 Oasis Long Sleeve Crewe Aiguille du Midi, Icebreaker's everyday Bodyfit™ top in 100% merino wool, layers effortlessly under any mid and outer layers for your cool-weather adventures. With its seams carefully offset from the peak of your shoulder, you won't find any irritation from the straps of a heavy pack. All-over flatlock seams prevent chafing and underarm gussets allow for unrestricted range of motion. This base layer top is your go-to adventure staple. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Odor-resistant, Breathable, Warm FEATURES: Offset shoulder seams prevent pack rub, Flatlock seams prevent chafing, Underarm gusset for comfort and mobility, Drop tail hem for added coverage, Center back length: 75.4cm/29¾", size L, icebreaker tonal embroidered logo FABRIC WEIGHT: 200 Lightweight FABRIC: 100% Merino Wool

The 200 Oasis Long Sleeve Crewe Snap Head, Icebreaker's everyday Bodyfit™ top in 100% merino wool, layers effortlessly under any mid and outer layers for your cool-weather adventures. With its seams carefully offset from the peak of your shoulder, you won't find any irritation from the straps of a heavy pack. All-over flatlock seams prevent chafing and underarm gussets allow your body to breathe where it needs it most. This base layer top is your go-to adventure staple. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Odor-resistant, Breathable, Warm FEATURES: Offset shoulder seams prevent pack rub, Flatlock seams prevent chafing, Underarm gusset for comfort and mobility, Drop tail hem for added coverage, Center back length: 75.4cm/29¾", size L, icebreaker tonal embroidered logo FABRIC WEIGHT: 200 Lightweight FABRIC: 100% Merino Wool

A stretchy merino baselayer shirt ideal for long, high-output days on the bike, trail, skis or the rock, the updated 200 Zone Long Sleeve Crewe is the ultimate lightweight technical baselayer top. The Zone features BodyfitZONE™ construction, which combines lightweight, odor-resistant stretch merino wool with strategically placed merino mesh panels to help regulate temperature during stop-and-go days on the trail or in the mountains. Raglan sleeves and underarm gussets allow for unrestricted range of motion, and flatlock stitching eliminates chafing during dynamic days out in nature. FEATURES: Updated design, LYCRA® content for stretch and mobility, Strategically placed merino mesh for ventilation, Flatlock seams prevent chafing, Raglan sleeve construction for mobility, Underarm gusset for comfort and mobility, Dropped front and back hem for added coverage, Center back length: 76.5cm/30", size L, Icebreaker heat transfer logo FABRIC: Body: 96% Merino Wool/ 4% LYCRA® Eyelet: 98% Merino Wool/ 1% LYCRA®/ 1% Nylon

Designed to provide baselayer warmth in a minimalist package that’s ideal for spring ski tours, cool-weather climbs and other active days in mild conditions, the updated 200 Zone Shorts are fully gusseted for unrestricted movement. The 200 Zone Shorts feature BodyfitZONE™ construction, which combines lightweight, odor-resistant stretch merino wool with strategically placed merino mesh panels to help regulate temperature during stop-and-go days of skiing, climbing and cold-weather hiking. The brushed elastic waistband and flatlock stitching keeps these bottoms from chafing during day after day of dynamic motion. FEATURES: Updated design, LYCRA® content for stretch and mobility, Strategically placed merino mesh for ventilation, Flatlock seams prevent chafing, Icebreaker branded elastic waistband, Gusset for comfort and mobility, Inseam: 27.9cm/10", size L FABRIC: Body: 96% Merino Wool/ 4% LYCRA® Eyelet: 98% Merino Wool/ 1% LYCRA®/ 1% Nylon

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 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. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Breathable, Warm FEATURES: Icebreaker branded brushed elastic waistband, flatlock seams prevent chafing, gusset for comfort and mobility, inseam: 78.1cm/30¾", size L FABRIC WEIGHT: 260 Midweight FABRIC: 100% Merino Wool

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. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports BENEFITS: Comfort, Breathable, Warm FEATURES: Updated design, flatlock seams prevent chafing, contoured pouch with functioning fly, Icebreaker branded brushed elastic waistband, gusset for comfort and mobility FABRIC WEIGHT: 260 Midweight FABRIC: 100% Merino Wool PRODUCT WEIGHT: Medium = 243 g / 8.57 oz

Icebreaker's versatile baselayer design in a midweight fabric, the updated 260 Tech Long Sleeve Crewe 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, 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. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Breathable, Warm FEATURES: Offset shoulder seams prevent pack rub, flatlock seams prevent chafing, forward side seams for comfort, underarm gusset for comfort and mobility, drop tail hem for added coverage, center back length: 75.4cm/29¾", size L, Icebreaker tonal embroidered logo FABRIC WEIGHT: 260 Midweight FABRIC: 100% Merino Wool

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. FIT: Slim LAYER: Base Layers BEST FOR: Snow Sports, Adventure BENEFITS: Comfort, Breathable, Warm FEATURES: Zip neck collar for temperature regulation, offset shoulder seams prevent pack rub, flatlock seams prevent chafing, forward side seams for comfort, underarm gusset for comfort and mobility, drop tail hem for added coverage, center back length: 75.4cm/29¾", size L, Icebreaker tonal embroidered logo FABRIC WEIGHT: 260 Midweight FABRIC: 100% Merino Wool

Icebreaker's classic, go-to boxer brief 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 Boxers are the underwear you’ve been searching for. With an exclusive Icebreaker fit that makes them the most comfortable pair in your underwear drawer, the Anatomica Boxers also feature 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, and the contoured pouch offers additional support. INSEAM: Large = 11.6cm / 4.5" FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure, Lifestyle BENEFITS: Comfort, support, Odor Resistant, Lightweight, Breathable FEATURES: Corespun fabric for enhanced durability, LYCRA® content for stretch and mobility, contoured pouch, flatlock seams prevent chafing, Icebreaker branded elastic waistband FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun

Icebreaker's classic, go-to boxer brief 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 Boxers w/ Fly are the underwear you’ve been searching for. With an exclusive Icebreaker fit that makes them the most comfortable pair in your underwear drawer, the Anatomica Boxers w/ Fly also feature 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, and the contoured pouch with a functioning fly offers support and function. INSEAM: Large = 11.6cm / 4.5" FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure BENEFITS: Comfort, support, odor resistant, lightweight, breathable FEATURES: Corespun fabric for enhanced durability, LYCRA® content for stretch and mobility, contoured pouch with functioning fly, flatlock seams prevent chafing, Icebreaker branded elastic waistband FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun

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. FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure BENEFITS: Comfort, support, Odor Resistant, Lightweight, Breathable FEATURES: Updated with improved fit, closed contour pouch, flatlock seams prevent chafing, corespun fabric for added durability FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun

An ultralight T-shirt built with a super-soft, stretchy and highly durable merino wool blend, the Anatomica Short Sleeve Crewe 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 Crewe 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. FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure BENEFITS: Comfort, Odor Resistant, Lightweight, Breathable FEATURES: Updated with improved fit, flatlock seams prevent chafing, corespun fabric for added durability FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun

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. FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure BENEFITS: Comfort, Odor Resistant, Lightweight, Breathable FEATURES: Updated with improved fit, flatlock seams prevent chafing, corespun fabric for added durability FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun

An ultralight tank built with a super-soft, stretchy and highly durable merino wool blend, the Anatomica Tank provides the versatile, breathable comfort you need for warm, active days out. With an updated fit that makes it even more comfortable, the Anatomica Tank also feature Icebreaker's corespun fabric, which uses nylon fibers wrapped in merino wool for increased durability and strength that retains next-to-skin softness. Flatlock seams eliminate chafing when you’re on the move. FIT: Slim LAYER: Underwear BEST FOR: Hike, Adventure BENEFITS: Comfort, Odor Resistant, Lightweight, Breathable FEATURES: Updated with improved fit, flatlock seams prevent chafing, corespun fabric for added durability FABRIC WEIGHT: 150 Ultralight FABRIC: 83% Merino Wool, 12% Nylon, 5% LYCRA® corespun PRODUCT WEIGHT: Medium = 180 g / 6.34 oz