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Smartwool Men's Classic All-Season Merino Base Layer 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.

Department
Men
Sleeve
Long
Merino content
88%
Fabric weight
150 GSM
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When this model makes sense

A light, close-fitting foundation is more useful to your layering system than a standalone thermal sweatshirt.

Fit and sizing

Slim cut, with offset shoulder and side seams. Leave room for movement instead of treating close fit as compression.

Trade-offs to consider

Classic All-Season and Classic Thermal are separate families. Check that the selected listing still names All-Season.

Model details

  • 150 g/m² fabric
  • 88% merino wool and 12% recycled nylon
  • Offset shoulder and side seams
  • Long-sleeve crew

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.

Sources & further reading

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