Women's

A premium, slim-fit base layer made with luxuriously soft 15.5 micron merino wool fibers and a high-neck design for added protection. Read more

A heavyweight merino base layer top. Read more

One of Smartwool's heaviest base layer tops and one of the best base layers for cold weather. 100% responsibly sourced Merino wool keeps you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more. Read more

Breathable, very elastic and hybrid tights made of recycled materials for cross-country skiing, trail running and bike. Read more

Technical, cold-weather base layer bottoms for highly aerobic days. Read more

The 200 Zone Leggings are perfect for year-round use. Read more

The Merino 200 Oasis Long Sleeve Thermal Top features our most versatile merino wool jersey fabric for year-round layering performance across any activity. Read more

One of Smartwool's best base layers for cold weather. 100% responsibly sourced Merino wool keeps you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more. Read more

100% Merino. 100% capable. Our Women's Merino Base Layer Bottom is always ready for what's ahead and what's next. Read more

Midweight merino base layer bottoms designed to help regulate temperature during high-intensity activity. Read more

The Performance Wool 150 base layer half zip is a fast drying, comfortable base layer for skiing, hiking and beyond. Natural base layer comfort for wherever you're headed next. Read more

Absolute freedom of movement. The pinnacle of seamless base layers. Read more

Seamless performance. Style that's versatile and timeless. Read more

An incredibly warm merino base layer for the coldest months of the year. Read more

A go-to piece for winter layering, made with 100% merino wool. Read more

Seamless performance. Timeless style. Read more

Absolute freedom of movement. The pinnacle of seamless base layers. Read more

We've updated the fit of our Women's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. Read more

Midweight base layer bottoms perfect for skiing, winter hiking, or cold-weather layering. Read more

Absolute freedom of movement. The pinnacle of seamless base layers. Read more

Absolute freedom of movement. The pinnacle of seamless base layers. Read more

The women's Natural 100% merino Warm base layer pants. Read more

The perfect wool baselayer for training. Mesh structure in 80% merino wool, reinforced with nylon to provide high insulation and optimal temperature control. Read more