Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip
Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip
Regular price
$95.00
Shipping calculated at checkout.
Low stock: 1 left
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
Smartwool Men's Size Chart
Smartwool Men's Size Chart
| TOPS | CHEST | WAIST | HIP | SLEEVE LENGTH |
| S | 36-38" | 29-31" | 36-38" | 31-32" |
| M | 39-41" | 32-34" | 39-41" | 32-33" |
| L | 42-44" | 35-37" | 42-44" | 33-34" |
| XL | 45-48" | 38-40" | 45-48" | 34-35" |
| XXL | 49-51" | 41-44" | 49-51" |
35-36" |
| BOTTOMS | S | M | L | XL | XXL |
| WAIST | 29-31" | 32-34" | 35-37" | 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" |
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Our popular Classic All-Season Merino Base Layer 1/4 Zip is the perfect base layer for warm or cold weather. This top uses our All-Season-weight Merino fabric wrapped around a nylon core to increase durability, while still keeping the 100% soft, Merino wool you love next to skin. Side seams help minimize chafing while wearing a pack and offer a body-enhancing fit. This base layer is comfortable, powerful, sustainable, and, frankly, do-it-all-able.
- Fit: Slim
- Our slim fit is intended to follow the contours of the body
- Our lightweight Merino jersey fabric uses a recycled nylon core to increase durability while still keeping 100% Merino wool next to skin
- Flatlock seam construction and offset shoulder and side seams designed to increase comfort and minimize chafing
- Side seams wrap to front for body-enhancing fit
- 8" (20 cm) center-front zipper with semi-locking slider
- Made in China: 88% Merino Wool, 12% Nylon. Exclusive of Decoration.
![WARNING: This product can expose you to [name of chemical], which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.](https://cdn.shopify.com/s/files/1/0170/8972/4516/files/Prop_65_Label.jpg?v=1727287530)
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