How to Choose Base Layers

A cold-conditions base layer, this Stio top manages moisture during high-output efforts. Its Polartec® Power Wool™ fabric wicks moisture and dries fast. And the zip neck lets you vent warm air.
Imported.
View all Stio Men's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | Partial-zip |
| Fabric | PeakWool™ double knit jersey 280g/m² 56% RWS certified merino wool/23% TENCEL lyocell/12% recycled nylon/7% nylon/2% spandex |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Thumbholes | Yes |
| Gender | Men's |
| Sustainability | Wool certified to the Responsible Wool Standard (RWS) From a Climate Label Certified brand |
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Chest | 37 - 39 | 39 - 41 | 42 - 44 | 45 - 48 | 49 - 52 |
| Waist | 31 - 33 | 33 - 35 | 36 - 39 | 40 - 43 | 45.5 - 48.5 |
| Hip | 36.5 - 38.5 | 38.5 - 40.5 | 41.5 - 43.5 | 43.5 - 46.5 | 46.5 - 50 |
| Inseam | 32 | 32 | 32 | 32 | 32 |
Measurements are stated in inches unless otherwise indicated.
Inseam measurements are for regular length. Short inseams are 30 inches. Long inseams are for 34 inches.
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I have used this during a week of near zero snowshoeing in Montana (in and out of Yellowstone) as well as during a week of 20-30 degree snowshoeing in the Uintas east of Park City. Great layer in both cases. Maintains warmth, sheds sweat, and does not pill.
Super comfortable and so warm!! Been missing out for 34 years of my life without a half zip layer like this. dang. . . The material is incredibly soft, it breathes very well, and fits me great. Pair it with the same lower baselayer as well!
I would have never bought this full price ($160) but it was on sale and I had a lot of Capital One credit. Anyway it’s great quality material and I like the collar style. Stio makes great stuff…
This mid-weight base layer feels and looks great and is a great weight to wear under my ski jacket.
This is a must have piece in anyone’s bag…. keeps you dry, warm, cool and comfortable. Get 1 or 3.
Very comfortable material and perfect fit for me (using the sizing guide). Would/will buy again.