Featuring the brand’s specific merino sport yarn, Smartwool combines the power of merino wool with the durability of polyester to create a long-lasting, fast-drying, thermoregulating first layer in the Men’s Intraknit Thermal Merino Baselayer 1/4 Zip. This base layer is 3D-mapped for near-custom fit and freedom of movement while helping to enhance your performance with a lightweight and cleaner finish – creating the ultimate performance-ready top for all your high-energy activities.
Explore the 2024 FREESKIER Buyer’s Guide
CHECK OUT MORE OF THE BEST Baselayers OF 2025
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Featuring the brand’s specific merino sport yarn, Smartwool combines the power of merino wool with the durability of polyester to create a long-lasting, fast-drying, thermoregulating first layer in the Men’s Intraknit Thermal Merino Baselayer 1/4 Zip. This base layer is 3D-mapped for near-custom fit and freedom of movement while helping to enhance your performance with a lightweight and cleaner finish – creating the ultimate performance-ready top for all your high-energy activities.
Explore the 2024 FREESKIER Buyer’s Guide
CHECK OUT MORE OF THE BEST Baselayers OF 2025
