How to Choose Base Layers

Delivering exceptional performance and improved functionality, the women's Smartwool Classic Thermal Merino crew base layer top maintains your warmth and comfort as you hike, ski, bike and more.
Imported.
View the Smartwool Classic Thermal Merino Product LineView all Smartwool Women's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | T-shirt |
| Fabric | Merino wool |
| Moisture Wicking | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Gender | Women's |
| Sustainability | Contains ZQ merino wool |
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