Ortovox 185 Merino Rock'n'Wool vs Smartwool Merino 150 Base Layer Long Sleeve
Weight and specs compared for 2026 — and which one to choose.
Merino wool base layer at 6.6 oz. Balances warmth and weight effectively.
Full details →Lightweight merino-blend long-sleeve base layer (men's) with natural odor resistance for all-season layering.
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Ortovox 185 Merino Rock'n'Wool vs Smartwool Merino 150 Base Layer Long Sleeve: which should you buy?
If saving weight is your priority, the Smartwool Merino 150 Base Layer Long Sleeve wins — at 150 g it is 37 g (20%) lighter than the Ortovox 185 Merino Rock'n'Wool (187 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.