Men's Base Layer Leggings

Midweight performance baselayer bottoms designed for cold, low- to medium-intensity pursuits using our OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Leggings feature MerinoFine™ wool fibres that provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability.

Heavyweight merino base layer bottoms designed to help regulate temperature during high-intensity activity, the 260 ZoneKnit™ Leggings feature 100% pure and natural merino wool.

Heavyweight merino wool base layer bottoms designed to keep you warm and comfortable on the coldest of days, the 300 MerinoFine™ Polar Leggings feature premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

Heavyweight merino wool base layer bottoms designed to keep you warm and comfortable on the coldest of days, the 300 MerinoFine™ Polar Leggings feature our premium, luxuriously soft ultra-fine merino fibres that are incredibly soft next to skin.

All-purpose, year-round base layer bottoms made with super-soft, 100% merino wool fibres, the 175 Everyday Leggings are perfect for everything from summer nights in camp to frigid days at the ski resort.

Versatile year-round base layer bottoms made with 100% merino wool and a slim fit, the 175 Everyday Leggings offer premium breathability, odor-resistance and next-to-skin comfort.

Versatile year-round base layer bottoms made with 100% merino wool and a slim fit, the 175 Everyday Leggings With Fly offer premium breathability, odor-resistance and next-to-skin comfort.

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Legless feature a short leg for use with boots.

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings With Fly are the perfect foundation for your cold-weather layering.

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings With Fly are the perfect foundation for your cold-weather layering.

Setting the standard for all others to follow, the 200 Oasis Leggings with Fly are icebreaker's comfortable base layer bottoms that make the perfect foundation for your everyday year-round layering system.

The benchmark against which all others are judged, the 200 Oasis Shorts feature our most versatile merino jersey fabric for year-round layering performance across any activity.

Midweight 100% merino fabric base layer bottoms designed to help regulate temperature during high-intensity activity, the 200 ZoneKnit™ Leggings are the ideal choice for cold-weather training and adventures when you’re moving fast thanks to our ZoneKnit™ technology.

Midweight 100% merino fabric base layer bottoms designed to help regulate temperature during high-intensity activity, the 200 ZoneKnit™ Leggings are the ideal choice for cold-weather training and adventures when you’re moving fast thanks to our ZoneKnit™ technology.

We’ve recently updated this style from 260 Tech to 260 Oasis. While the name has changed, the product hasn’t. It’s built with the exact same design, composition, quality and performance that define this style. As we move through this transition, new and old packaging will be shipped randomly, and some...

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

We’ve recently updated this style from 260 Tech to 260 Oasis. While the name has changed, the product hasn’t. It’s built with the exact same design, composition, quality and performance that define this style. As we move through this transition, new and old packaging will be shipped randomly, and some...

We’ve recently updated this style from 260 Tech to 260 Oasis. While the name has changed, the product hasn’t. It’s built with the exact same design, composition, quality and performance that define this style. As we move through this transition, new and old packaging will be shipped randomly, and some...

Heavyweight merino wool base layer bottoms designed to help regulate temperature during high-intensity activity, the 260 ZoneKnit™ Leggings feature 100% merino wool.

A lightweight performance baselayer that excels during high-output pursuits, the Merino Blend 125 ZoneKnit™ Leggings combines light and breathable Cool-Lite™ fabric with our ZoneKnit™ technology.