Intraknit™ Thermal Merino Base Layer Crew
Smartwool’s engineered Merino base layer, mapped for movement, warmth, and breathability.
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Story & heritage
Intraknit™ is Smartwool’s more engineered base-layer language. The official page calls this crew lightweight and super-moveable for extreme cold-weather activities, positioning it as the technical sibling to the Classic Thermal crew.
It belongs in the icon set because it shows the brand pushing Merino beyond flat basics into ventilation placement, movement, and thermoregulation.
Materials & craft
Official copy cites Merino wool yarns and gender-specific ventilation placed to maximize thermoregulation and breathability during high-intensity activities.
The construction is meant to amplify moisture management, movement, and comfort, making the knit itself part of the performance system rather than just the fabric.
How to choose & style
Use it as the performance layer when movement matters: ski touring, fast hiking, winter running, or high-output cold days. The mapped knit looks intentional enough to wear under an open shell.
