Men's Base layer

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Short Sleeve Crewe is our best-selling base layer top.

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Short Sleeve Crewe is our best-selling base layer top.

Setting the standard for all others to follow, the 200 Oasis Short Sleeve Crew is icebreaker's best-selling base layer—a versatile active top for year-round layering and everyday comfort.

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.

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.

An elevated, sportier version of our best-selling base layer, the 200 Oasis+ Long Sleeve Crewe is a versatile top that make the perfect foundation for your everyday year-round layering system.

An elevated, sportier version of our best-selling base layer, the 200 Oasis+ Long Sleeve Half Zip Hoodie is a versatile top that make the perfect foundation for your everyday year-round layering system.

An elevated, sportier version of our best-selling base layer, the 200 Oasis+ Long Sleeve Crewe is a versatile top that make the perfect foundation for your everyday year-round layering system.

An elevated, sportier version of our best-selling base layer, the 200 Oasis+ Long Sleeve Half Zip Hoodie is a versatile top that make the perfect foundation for your everyday year-round layering system.

Crafted from 100% merino wool and modeled after our best-selling base layer, the 200 Oasis+ Suit is a foundational piece built for explorers, with full-body coverage designed to keep you warm during long days outdoors.

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.

A midweight baselayer designed for intense activity and made with 100% merino wool fabric, the 200 ZoneKnit™ Long Sleeve Crew features our ZoneKnit technology for ample breathability.

A midweight baselayer designed for intense activity and made with 100% merino wool fabric, the 200 ZoneKnit™ Long Sleeve Crewe features our ZoneKnit technology for ample breathability.

A midweight baselayer designed for intense activity and made with 100% merino wool fabric, the 200 ZoneKnit™ Long Sleeve Crewe features our ZoneKnit technology for ample breathability.

A midweight baselayer designed for intense activity and made with 100% merino wool fabric, the 200 ZoneKnit™ Long Sleeve Half Zip features our ZoneKnit technology for ample breathability.

A midweight baselayer designed for intense activity and made with 100% merino wool fabric, the 200 ZoneKnit™ Long Sleeve Half Zip features our ZoneKnit technology for ample breathability.

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.