How to Choose Base Layers

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Add a full-body layer of warmth with this Smartwool one-piece. It's made with merino wool that manages moisture and is naturally odor resistant. And it has a functional fly and zippered drop seat.
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View all Smartwool Men's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Shirt Type | Partial-zip |
| Fabric | 100% merino wool (exclusive of decoration) |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Inseam (in.) | Unavailable |
| Gender | Men's |
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Fits great, feels comfortable, and is nice and warm!