Smartwool
Smartwool Men's Perfect Crew Short Sleeve Tee
A cotton-and-merino crew for a casual wardrobe, with a standard cut that separates it from Smartwool’s slim active tees.
The merino edit
Smartwool Merino Shirts
Smartwool’s everyday crews and active tops answer different wardrobe needs. Start by choosing the cut and use, then compare the fabric in that particular model.
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Smartwool
Smartwool Men's Merino Short Sleeve Tee
This slim merino tee uses a recycled-nylon core and flatlock seams, making it an active-layer alternative to the brand’s cotton-blend Perfect Crew.
Smartwool
Smartwool Men's Classic All-Season Merino Base Layer Crew
The Classic All-Season crew is a 150 g/m² long-sleeve base layer, combining merino with recycled nylon rather than using a thick all-wool knit.
Smartwool
Smartwool Men's Merino Sport 120 Short Sleeve
An older Merino Sport short sleeve identified by style SW016544. It belongs on the shortlist for active use, with its generation kept separate from today’s Merino tee.
Smartwool
Smartwool Women's Merino Sport 120 Short Sleeve
The women’s Sport 120 is an active short sleeve with its own SW016587 style identity; it is not a resized version of the men’s catalog record.
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Smartwool Men's Active Ultralite Short Sleeve
Active Ultralite is the lightweight active-use branch of this catalog, offered here in a short sleeve rather than a thermal crew.
Inside the range
The Perfect Crew uses a 50% merino and 50% organically grown cotton fabric with a standard fit. The Merino Short Sleeve instead uses 88% merino and 12% recycled nylon in a slim fit. Its nylon-core construction does not make the whole shirt 100% wool, even when a description emphasizes wool against the skin. Those are useful distinctions when choosing between a casual tee and a closer layer.
For long sleeves, the Classic All-Season crew provides a documented 150 g/m² option. Keep it separate from Classic Thermal rather than treating both names as the same shirt. Older Merino Sport 120 styles and Active Ultralite tops also appear here; use the individual product details where composition or density remains unconfirmed. Match a replacement to its style code before relying on measurements or fabric information from another Smartwool generation.
Read before you choose
Model comparison
Smartwool Merino Short Sleeve vs Perfect Crew
Compare Smartwool’s slim Merino Short Sleeve with the cotton-blend Perfect Crew: fabric composition, fit, seams, and which everyday or active role each fills.
Read the guide →Model comparison
Smartwool Classic All-Season vs MERIWOOL 250
Compare Smartwool Classic All-Season 150 GSM with MERIWOOL 250 interlock: fiber blend, fabric density, seam layout, and the layer your outfit needs.
Read the guide →Field notes
Why Do Merino Shirts Contain Nylon?
Understand nylon in merino shirts, including core-spun yarns and total fibre content. Compare reinforcement claims without assuming every blend is identical.
Read the guide →Field notes
Merino T-Shirt vs Base Layer: Can One Do Both?
Compare a merino everyday T-shirt with a base-layer top by cut, coverage and construction. Decide when one shirt can work alone and beneath other clothing.
Read the guide →Field notes
Merino vs cotton shirts: when switching actually helps
Compare merino and cotton T-shirts for everyday wear, travel and packing. Decide what you need to improve before replacing a comfortable shirt you already own.
Read the guide →