How to Choose Base Layers

Insulated, ventilated, articulated and bulk-free—the men's Smartwool Intraknit Thermal Max Merino Quarter-Zip base layer top is the first thing you'll grab for high-intensity, cold-weather adventures.
Imported.
View the Smartwool Intraknit Product LineView all Smartwool Men's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | Partial-zip |
| Fabric | 97% merino wool/2% polyamide/1% elastane; exclusive of decoration |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Gender | Men's |
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