Smartwool
Active Ultralite is the lightweight active-use branch of this catalog, offered here in a short sleeve rather than a thermal crew.
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A light exercise tee is your starting point and you are comfortable checking its exact blend on the selected listing.
Match Active Ultralite sizing rather than the Perfect Crew’s casual cut.
Ultralite is a model description, not a numerical density or a guarantee that it will feel cool in every climate.
Our assessment uses listing details and manufacturer documentation. It is not a hands-on wear test. Confirm the composition and care label for your selected size and color.
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Field notes
Decode the washing and drying directions on a merino shirt, separate fiber content from care permission, and resolve missing or conflicting instructions.
Read the guide →