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When the cold bites, the right base layer makes every difference. Smartwool Women's Base Layer Tops are crafted in merino wool — soft on skin, breathable on the move, easy to wear day after day. Layer up for the trail, the commute, or wherever the day takes you. Explore our women's Intraknit base layers for seamless next-to-skin comfort, or complete your kit with women's thermal leggings. After something for the whole crew? Discover our men's merino base layer range too.
Q: What features should I look for in a base layer top?
A: When selecting a base layer top, look for features such as moisture management capabilities, breathability, and thermal regulation to keep you comfortable in varying conditions. Also consider the fit and stretch of the fabric for ease of movement, and flatlock seams to minimize chafing. The natural odor resistance of Merino wool is also a key benefit for extended wear.
Q: Can I wear a base layer top on its own?
A: Absolutely! Our base layer tops are designed with aesthetics in mind, making them stylish enough to wear alone in milder conditions or when you're simply enjoying the great indoors.
Q: Why choose Merino wool for base layers?
A: Merino wool is renowned for its exceptional thermal regulation, quick drying properties, and softness against the skin. It's also naturally odor-resistant, making it perfect for extended wear during your adventures.
Free Return Policy
Smartwool offers free returns within 30 days from the date of purchase. Items must be unused, unwashed, and unaltered.
Store Returns
Return the unworn item(s) to the store where you originally made the purchase for a refund or exchange.
Online Returns
Return unworn item(s) purchased at smartwool.com 30 days from the date of purchase for a complete refund. Initiate a return by accessing your order history and selecting “Return Items."
We are currently offering free shipping on orders €55+ placed on eu.smartwool.com.
Shipping based on normal carrier restrictions and delays. We cannot guarantee arrival. Free shipping may not be available for some customers.

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