Underwear

Smartwool has updated the fit of their Women's 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 keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.

Change can be a good thing! Smartwool has improved the fit on their 100% Merino bottom with new side seams and a curved seam in the back that provides a slimming effect, while reducing sag and excess fabric. Their Women's 250 Baselayer Bottoms are designed to keep you doing what you love while staying comfortable, helping with temperature regulation and wrapping you in unbelievable softness.

The Women's Intraknit Bikini Boxed by Smartwool is a definite when going out for a run. Ergonomically mapped to the body, they're built to be incredibly breathable and airy in all the right places. Made with merino wool, which has natural moisture wicking properties and is also odor preventive. They are also are flat and borderline seamless for maximum comfort. The perfect underwear for all your training needs!

Smartwool's Women's Intraknit Hipster underwear are all about helping you feel your best. They are seamless knit and put responsibly sourced Merino next to skin for enhanced comfort, moisture management, and temperature regulation. They are perfect for everything from racking up miles to relaxing in the unmatched comfort of Merino.

Versatile year-round base layer bottoms made with 100% merino wool and a slim fit, our 175 Everyday Leggings offer premium breathability, odor-resistance and next-to-skin comfort. Made in the mountains rather than in a petrochemical laboratory. Merino wool fibre is naturally renewable, recyclable and biodegradable.

Whether worn alone on warm-weather hikes or as a next-to-skin layer for frigid days at the ski resort, the 175 Everyday Long Sleeve Crewe is a versatile year-round baselayer made with Icebreaker's 100% merino wool rib-knit fabric. With a flattering slim fit, and all-natural breathability and odor-resistance, this do-it-all top is perfect for any active adventure.

Icebreaker's best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings are the perfect foundation for your cold-weather layering. With the soft merino fibers, they will help regulate the body's temperature, no matter weather conditions while also resisting odors.

A versatile women’s merino wool go-anywhere base layer shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top. The merino fibers help regulate your body temperature in all weather conditions and resists odors.

A versatile women’s merino wool base layer shirt with a zip-neck design for added ventilation and breathability, the 200 Oasis Long Sleeve Half Zip combines casual comfort with technical performance. Icebreaker Oasis base layers are what the company is famous for. These best-sellers are designed to contour the body and will easily flex with you, allowing maximum movement, whatever the activity. Not too heavy, not too light, our Oasis is made from 100% merino midweight jersey, making them your go to base layers for year-round layering and everyday comfort.

Midweight base layer bottoms perfect for skiing, winter hiking, or cold-weather layering, the 260 Tech Leggings are a warmer version of the best-selling Oasis Leggings, made with 100% merino wool.

Soft and stretchy merino wool underwear with a modern slim fit, the Siren Bikini features Icebreaker's corespun fabric that’s incredibly soft and durable. With the soft merino fibers, they will help regulate the body's temperature, no matter weather conditions while also resisting odors.

A sleek, modern-fit bra with our soft and stretchy corespun merino wool fabric, the Siren Bra is comfortable, supportive and breathable.

Featuring a slim, modern fit and our corespun merino wool fabric for durable comfort, the Siren Bra offers the support you need with a soft, sleek and stretchy construction.

A soft and stretchy women’s T-shirt with an updated fit and fabric that makes it even more comfortable, the Siren Long Sleeve Sweetheart is made with Icebreaker's corespun fabric, soft merino wool fibers wrapped around a nylon core for added strength and durability, while retaining next-to-skin softness. Ideal for year-round use whether traveling, hiking, or relaxing after a big day outside, the Siren Long Sleeve Sweetheart also features a flattering neckline and a fit that’s perfect for everyday comfort and layering.

A soft and stretchy tank top with a sleek, feminine design for everyday layering comfort, the Siren Tank features our durable and incredibly soft corespun merino wool blend fabric.

A soft and stretchy tank top with a sleek, feminine design for everyday layering comfort, the Siren Tank features our durable and incredibly soft corespun merino wool blend fabric.

A soft merino-blend top made with Icebreaker's lightweight Cool-Lite™ jersey fabric, the Sphere II Tank provides natural breathability, odor resistance and comfort.

Lightweight merino wool hot pants perfect for daily wear or kicking back after a long day outside, the Sprite Hot Pants feature a flattering slim fit and offset seams for all-day comfort. The durable merino blend provide assistance regulating your body temperature in all weather conditions.

A breathable, supportive racerback bra made with durable and super-soft corespun merino blend fabric, the Sprite Racerback Bra allows for full range of motion and all-day comfort. The durable merino blend provide assistance regulating your body temperature in all weather conditions.

A breathable, supportive racerback bra made with durable and super-soft corespun merino blend fabric, the Sprite Racerback Bra allows for full range of motion and all-day comfort. The durable merino blend provide assistance regulating your body temperature in all weather conditions.

A unique 2-in-1 base layer half-zip to with a with a warm-breathable 100% merino wool exterior and a 100% LIFA® wicking interior. The LIFA® Merino Midweight collection is perfect for any type of activity in cold weather. Combined with a 100% merino wool layer with their proven LIFA® Stay Warm tech in a 2-layer construction. LIFA® Merino Midweight delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers. Basics don’t need to be boring; we upgraded the top with cool graphics.

These LIFA® Merino Midweight Pants perform in any type of cold weather activity so you can get outside and stay outside. Combined with a 100% merino wool layer with their proven LIFA® Stay Warm Technology in a 2-layer construction. LIFA® Merino Midweight delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers. These base layer pants are fitted for optimal mobility without bulk.

A unique 2-in-1 base layer crew with a with a warm-breathable 100% merino wool exterior and a 100% LIFA® wicking interior. The versatile LIFA® Merino crew adapts to any type of cold weather. Combined with a 100% merino wool layer with their proven LIFA® Stay Warm Technology in a fitted 2-layer construction. LIFA® Merino Midweight Crew Base Layer delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers.

The versatile LIFA® Merino crew keeps you warm and dry during any type of cold weather activity, so you can get outside and stay outside longer. Combined with a 100% merino wool layer with their proven LIFA® fiber technology in a 2-layer construction. This unique performance LIFA® Merino fabric delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers. It excels at technical performance. It’s also super-soft and comfortable.

A unique 2-in-1 base layer half-zip with a with a warm-breathable 100% merino wool exterior and a 100% LIFA® wicking interior. The LIFA® Merino Midweight collection is perfect for any type of activity in cold weather. Combined with a 100% merino wool layer with their proven LIFA® Stay Warm tech in a 2-layer construction on this ½ zip. LIFA® Merino Midweight Base Layer delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers.