How to Choose Base Layers

Brave the cold weather on your adventures with the help of the Smartwool Classic Thermal Merino hoodie. The heaviest weight base layer from Smartwool, it has a high neck and hood for extra coverage.
Imported.
View the Smartwool Classic Thermal Merino Product LineView all Smartwool Men's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | Mock / Turtleneck |
| Fabric | Merino wool |
| Moisture Wicking | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Gender | Men's |
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Chest | 36 - 38 | 39 - 41 | 42 - 44 | 45 - 48 | 49 - 51 |
| Sleeve Length | 31 - 32 | 32 - 33 | 33 - 34 | 34 - 35 | 35 - 36 |
| Waist | 29 - 31 | 32 - 34 | 34 - 37 | 38 - 40 | 41 - 44 |
| Hip | 36 - 38 | 39 - 41 | 42 - 44 | 45 - 48 | 49 - 51 |
| Inseam | 30 - 31 | 31 - 32 | 32 - 33 | 33 - 34 | 34 - 35 |
Measurements are stated in inches.
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Worked great as a base layer for road and mountain biking.
I love this merino hoodie. It's a great trim fit for a nonbinary person whose arms are too long for women's clothes but who doesn't have a massive chest. Very comfortable neck opening and the hood makes for a nice loose neck warmer. I could live in this garment, so I bought a second one. Those are mountains in the woven pattern in the torso. It's a lightweight base layer and it goes well over three or four other lightweight layers.
Very comfortable. I have had my last Smartwool midlayer for over 15 years now. The hoodie design on this is great.