Underwear

Smartwool has updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of their heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.

Meet the better-than-ever Men's Merino 250 Base Layer Crew. Smartwool has 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 prevent chafing. Add one of their best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

A versatile men’s merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with technical performance. Weight: Large = 321 g / 11.3 oz Men's Trim Fit

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. Weight: Large = 365.38 g / 12.8 oz

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. Weight: 320 g / 11.29 oz (Size Large) Men's Trim Fit. Fabric Weight: 260 Midweight Mid Layer Merino

A warmer, midweight version of the best-selling Oasis, the 260 Tech Long Sleeve Crewe is a go-to piece for winter layering, made with 100% merino wool. Weight: Large = 400 g / 14.1 oz Men's Trim Fit Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

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.

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. Weight: 400 g / 14.1 oz (Size Large) Men's Trim Fit. Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size Medium

Classic boxer briefs made with a stretchy slim fit and the corespun fabric, the Anatomica Boxers are supportive and comfortable for daily life and active pursuits. Product weight: Large = 79.4 g / 2.8 oz Men's Trim Fit. Inseam: 11.6cm/4½", Size L Model measurements: Height: 6’1” / 186cm. Waist: 33.1" / 84cm. He is wearing size Medium.

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. Weight: Large = 50.2 g / 1.77 oz Men's Trim Fit. Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

Classic boxer briefs made with a stretchy slim fit and the corespun fabric, the Anatomica Long Boxers are supportive and comfortable for daily life and active pursuits. Weight: Large = 88.7 g / 3.12 oz Men's Trim Fit Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

Merino wool underwear for everyday comfort and active days, the slim-fit Anatomica Briefs feature a classic underwear design and contoured pouch for added support.

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. Weight: Large = 136 g / 4.79 oz Men's Trim Fit Model measurements: Height: 183cm / 6'. Waist: 81cm / 32". Jamie is wearing size M.

Icebreaker's lightest base layer bottoms made with soft, breathable and odor-resistant jersey corespun fabric, the 150 Zone Leggings offer ultralight insulation. Weight: Large = 234 g / 8.25 oz Men's Fitted Profile Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

Merino wool boxer briefs with a stretchy slim fit and breathable fabric blend, the Anatomica Cool-Lite™ Boxers offer support and comfort for daily life and active pursuits. Weight: Large = 70 g / 2.46 oz Men's Trim Fit Inseam Length: 11.3cm based on size L Model measurements: Height: 183cm / 6'0". Waist: 86cm / 34". Caleb is wearing size Medium.

Performance 2-in-1 base layer pants with a warm and breathable 100% merino wool exterior and a 100% LIFA® wicking interior.

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. Weight: Large = 155 g / 5.46 oz Men's Fitted profile Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

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. Weight: Large = 209 g / 7.37 oz Men's Trim Fit Model measurements: Height: 5'11" / 180cm. Waist: 34.2" / 87cm. He is wearing size M

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. Weight: Large = 275 g / 9.7 oz Men's Fitted profile