How to Choose Base Layers

All-season favorites, the men's Smartwool Classic All Season Merino base layer bottoms wear well as a base layer for fall-weather activities and early-summer backpacking trips alike.
Imported.
View the Smartwool Classic All Season Product LineView all Smartwool Men's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 77% merino wool/23% nylon |
| Underwear Weight | Lightweight |
| Inseam (in.) | Unavailable |
| Gender | Men's |
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I’m 5,10 175lbs. Fits great (true to size), feels warm. Really love the green color. I only wished the north face logo on my but area wasn’t so bright. Luckily it’s in the back so I can’t see as much.