Women's Base Layer Tops

The Kari Traa Eva High Waist Capri is our answer to winter athletes who get cold thighs and butts and want improved warmth. Premium down on the fro...

The Kari Traa Smekker Half Zip is a lightweight, merino baselayer with a luxurious feel. Panels of Jacquard-knit patterns in different designs crea...

The R1® Air Zip-Neck is a lightweight, breathable and quick-drying technical fleece for high-exertion activities in cold conditions. The 100% recyc...

Our ultra-lightweight Intraknit™ fabric utilizes Merino Sport yarns for a softer, cleaner finish. Crafted with Intraknit™ technology, the Women'...

Lightweight, with a clean finish and beautiful floral patterns, our Women's Intraknit™ Thermal Merino Base Layer Pattern Crew was engineered to ...

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

Our most breathable, lightweight top for high-output activities, the 125 ZoneKnit™ Energy Wind Long Sleeve T-Shirt features a body-mapped combinati...

The benchmark against which all others are judged, the 200 Oasis Long Sleeve Crewe Ski Stripes features our most versatile merino jersey fabric for...

The benchmark against which all others are judged, the 200 Oasis Long Sleeve Crewe Ski Stripes features our most versatile merino jersey fabric for...

A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Half Zip is a go-to piece for winter layering, made with 100% merin...

Versatile, durable Polartec® Power Stretch® Pro base layer top for mixed output in cold conditions. Our warmest base layer zip-neck. Polartec® Powe...