Women's Clothing Base layers

Setting the standard for all others to follow, the Merino 200 Oasis Long Sleeve Half Zip features our most versatile 100% merino wool jersey fabric for year-round layering performance across any activity.

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

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

A reliable go-to layer for everyday comfort and active days outside, the 200 Oasis Long Sleeve V features a technically capable yet flattering V-neck silhouette with the benefits of 100% merino wool. Made with our most versatile merino jersey fabric, the Oasis provides super-soft, next-to-skin comfort, incredible breathability and natural...

Our 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.

Our 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.

Our 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.

Setting the standard for all others to follow, the Merino 200 Oasis Leggings are comfortable base layer bottoms that make the perfect foundation for year-round layering.

Setting the standard for all others to follow, the Merino 200 Oasis Leggings are comfortable base layer bottoms that make the perfect foundation for year-round layering.

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.

Stylish, slim-fit underwear made with our soft and breathable 100% merino wool jersey, the 200 Oasis Boy Shorts are all about everyday comfort.

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 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 High Neck 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 High Neck 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 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.