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Smartwool Intraknit Merino Top vs Smartwool Merino 150 Base Layer Short Sleeve

Weight and specs compared for 2026 — and which one to choose.

Smartwool Merino 150 Base Layer Short Sleeve is the lighter option — 67 g lighter than the Smartwool Intraknit Merino Top (34% less weight). If grams matter to you, that is the one to beat.
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Spec Smartwool Intraknit Merino Top Smartwool Merino 150 Base Layer Short Sleeve
Weight 200 g · 0.200 kg · 0.44 lb 133 g · 0.133 kg · 0.29 lb
Brand Smartwool Smartwool
Category Clothing - Base Layer Clothing - Base Layer
Smartwool Intraknit Merino Top
200 g

Zoned merino base layer with stretch panels.

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Smartwool Merino 150 Base Layer Short Sleeve
133 g

Lightweight 150g/m² merino wool short-sleeve base layer with natural odor resistance, ideal for warm-weather hiking and backpacking.

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Smartwool Intraknit Merino Top vs Smartwool Merino 150 Base Layer Short Sleeve: which should you buy?

If saving weight is your priority, the Smartwool Merino 150 Base Layer Short Sleeve wins — at 133 g it is 67 g (34%) lighter than the Smartwool Intraknit Merino Top (200 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest clothing - base layer page, or browse the full gear weight database.

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