Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip
Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip
Regular price
$130.00
Shipping calculated at checkout.
Low stock: 2 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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Smartwool has updated the fit of Smartwool's Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of Smartwool's heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.
Specs
- Size medium center-front zipper: 10" (25 cm)
- Origin: Vietnam
- Material: 100% Merino Wool
