Women's Base Layer Tops

Cold days and long approaches call for breathable insulation and plenty of venting. Made for multiple activities with chafe-free seams throughout, ...

Performance base layer for lower output activities in cool to cold temperatures. *The Rho Zip Neck was previously the Rho LT Zip Neck. Comfort star...

The Kari Traa Rose Hood is a soft and warm merino half-zip baselayer with a thin hood that fits under a helmet or a beanie for added insulation. Fe...

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

MerinoFine™ - Premium 15.5-micron icebreaker merino wool offers refined softness while efficiently managing moisture, drying quickly, providing nat...

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-mic...

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...

Stay warm and dry through all your adventures with the Kari Traa Rose Half Zip. This merino wool base layer in our iconic rose print blends Nordic ...

The 175 Everyday Long Sleeve Half Zip is a classic, all-purpose base layer top made with soft and breathable 100% merino wool rib-knit fabric. 100...

Meet the Kari Traa Alma Half Zip: a moisture-wicking, insulating technical base layer for all your sporty adventures. Body mapping technology and s...

The Kari Traa Lekker Long Sleeve is a body-mapping, quick-drying, temperature-regulating mixed blend baselayer. Lightweight and with playful patter...

Warm merino base layer bottoms with a unique jacquard pattern and a wide flattering waistband, the Merino 260 Vertex High Rise Leggings Peak AOP ar...

A warm merino base layer top with a unique jacquard pattern, the Merino 260 Vertex Long Sleeve Half Zip Peak AOP is a go-to piece for winter layeri...

Setting the standard for all others to follow, the Merino 200 Oasis Long Sleeve Crewe Rainer Ridge is a comfortable base layer top that make the pe...

You’ll love the innovation of the Intraknit™ Merino wool in the Women's Intraknit Thermal Merino Base Layer Colorblock 1/4 Zip, because it helps wi...

Setting the standard for all others to follow, the Merino 200 Oasis High Rise Leggings are comfortable base layer bottoms with a wide, flattering w...

From high alpine trails to the climbing gym, the Butter™ Tight is a versatile, buttery soft base layer that pairs perfectly under a shell and holds...

This perfect moisture-wicking base layer is buttery soft, allowing you to move effortlessly through any environment without chafing or overheating....

The super soft UPF 50 hoody for adventures big and small. Perfect for giving it your all on the next pitch or pacing on your favorite trail, the Bu...

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back t...

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back t...

Whether your day calls for moving quick and light to set a new FKT or you just need a solid midlayer with the perfect mix of warmth, stretch, and b...

A midweight merino wool base layer top designed to help regulate temperature during high-intensity activity, the Merino 200 ZoneKnit™ Long Sleeve H...

Incredibly warm merino-blend base layer bottoms for the coldest months of the year, the Merino 260 Tech High Rise Leggings are go-to piece for wint...