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Arc'teryx Rho LT Crew vs Montbell Merino Wool Tights
Weight and specs compared for 2026 — and which one to choose.
Arc'teryx Rho LT Crew is the lighter option — 45 g lighter than the Montbell Merino Wool Tights (23% less weight). If grams matter to you, that is the one to beat.
Arc'teryx Rho LT Crew
155 g
Lightweight Phasic base layer for cool and active conditions.
Full details →Montbell Merino Wool Tights
200 g
Lightweight merino tights for hiking in cold conditions.
Full details →Arc'teryx Rho LT Crew vs Montbell Merino Wool Tights: which should you buy?
If saving weight is your priority, the Arc'teryx Rho LT Crew wins — at 155 g it is 45 g (23%) lighter than the Montbell Merino Wool Tights (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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