Icebreaker 150 Zone Long Sleeve vs Smartwool Merino 150 Base Layer Long Sleeve

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

Both weigh the same at 150 g, so choose on features, price and fit.

Spec	Icebreaker 150 Zone Long Sleeve	Smartwool Merino 150 Base Layer Long Sleeve
Weight	150 g · 0.150 kg · 0.33 lb	150 g · 0.150 kg · 0.33 lb
Brand	Icebreaker	Smartwool
Category	Clothing - Base Layer	Clothing - Base Layer

Icebreaker 150 Zone Long Sleeve

150 g

Ultralight merino base layer for high-output activities.

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Smartwool Merino 150 Base Layer Long Sleeve

150 g

Lightweight merino-blend long-sleeve base layer (men's) with natural odor resistance for all-season layering.

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Icebreaker 150 Zone Long Sleeve vs Smartwool Merino 150 Base Layer Long Sleeve: which should you buy?

On weight these two are identical (150 g), so your decision comes down to features, fit and price. Check the full details and current price for each above.

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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