How to Choose Base Layers

A year-round favorite, the women's Smartwool Classic All-Season Merino Base Layer Long-Sleeve shirt can be sported as a base layer in the fall or a solo top in summer when it's time to go backpacking.
Imported.
View the Smartwool Classic All Season Product LineView all Smartwool Women's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | T-shirt |
| Fabric | 88% merino wool/12% nylon (exclusive of decoration) |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Gender | Women's |
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This base layer is extremely soft, very light weight and warm. I use it as an undershirt before putting on another Smartwool heavier shirt for skiing.
Love Smartwool! Repeat customer- great fit, great durability, great product. These shirts have traveled from Peru to Iceland to Antarctica with me and have not disappointed.
Lightweight layer if the days warms up, but warm enough to stay warm if the conditions are between temperatures.