Smartwool
Men's Classic Thermal Merino Base Layer 1/4 Zip
Men's Classic Thermal Merino Base Layer 1/4 Zip
Couldn't load pickup availability
Smartwool has refined one of its heaviest and warmest base layer tops with an updated fit that enhances both comfort and performance. The Men’s Classic Thermal Merino 1/4 Zip is crafted from 100% responsibly sourced Merino wool, providing superior moisture management, temperature regulation, and natural odor resistance. Shoulder panels and flatlock seam construction reduce chafing, while the slim fit follows the body’s contours for a streamlined, athletic look.
Designed for high-intensity activities in cold weather, this versatile 1/4 zip is perfect for skiing, hiking, running, or any adventure where warmth and mobility are essential. The 10-inch (25 cm) center-front zipper adds easy ventilation, and the side seams wrap to the front for enhanced fit and comfort under layers.
Made in Vietnam from 100% Merino wool (exclusive of decoration), this top combines durability, performance, and all-day comfort for winter pursuits.
Care Instructions:
Machine wash warm on a gentle cycle with like colors. Tumble dry low. Cool iron as needed. Do not bleach, dry clean, or iron over decorations.
Men's Clothing Size Chart
| Size | Chest | Waist | Hip | Arm Length | Inseam |
| Small |
36”–38” 91.5-96.5cm |
29”–31” 73.5-78.5cm |
36”–38” 91.5-96.5cm |
31”–32” 78.5-81.5cm |
30”–31” 76-78.5cm |
| Medium |
39”–41” 99-104cm |
32”–34” 81.5-86.5cm |
39”–41” 99-104cm |
32”–33” 81.5-84cm |
31”–32” 78.5-81.5cm |
| Large |
42”–44” 106.5-112cm |
35”–37” 89-94cm |
42”–44” 106.5-112cm |
33”–34” 84-86.5cm |
32”–33” 81.5-84cm |
| X-Large |
45”–48” 114.5-122cm |
38”–40” 96.5-101.5cm |
45”–48” 114.5-122cm |
34”–35” 86.5-89cm |
33”–34” 84-86.5cm |
| XX-Large |
49”–51” 124.5-129.5cm |
41”–44” 104-112cm |
49”–51” 124.5-129.5cm |
35”–36” 89-91.5cm |
34”–35” 86.5-89cm |
Share
