Womens Base Layer Bottoms

When the cold sets in, the right base layer is the first decision you make. Smartwool's Women's Base Layer Bottoms keep you warm on the trail, at the summit, or wherever the day takes you. Explore our women's merino base layer built for real movement — then discover the full range, including men's thermal base layer and men's merino base layer for everyone heading outside.

Women’s Merino Wool Base Layer Bottoms FAQs

Q: What temperature are these base layers best suited for?

A: Our base layer bottoms are versatile enough for all seasons. Merino 250 is ideal for colder conditions, providing extra warmth, while our All-Season and Intraknit Active base layers are perfect for milder temperatures or as part of a layered outfit for year-round use.

Q: Can I wear these base layers during high-intensity activities?

A: Absolutely! Our Intraknit Active and All-Season Merino base layers are specifically designed for a range of activities, offering breathability, moisture management, and quick-drying properties to keep you comfortable during any adventure.

Q: How do I care for my Merino wool base layers?

A: To care for Merino wool base layers, machine wash on a gentle cycle in cold water and lay flat to dry. Avoid using bleach or fabric softeners to maintain the integrity of the fibers and the performance of your garment.