Arc'teryx Rho LT Crew vs Rab Merino+ 120 Tee

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

Rab Merino+ 120 Tee is the lighter option — 15 g lighter than the Arc'teryx Rho LT Crew (10% less weight). If grams matter to you, that is the one to beat.

Spec	Arc'teryx Rho LT Crew	Rab Merino+ 120 Tee
Weight	155 g · 0.155 kg · 0.34 lb	140 g · 0.140 kg · 0.31 lb
Brand	Arc'teryx	Rab
Category	Clothing - Base Layer	Clothing - Base Layer

Arc'teryx Rho LT Crew

155 g

Lightweight Phasic base layer for cool and active conditions.

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Rab Merino+ 120 Tee

140 g

Ultralight merino wool tee for hiking and travel.

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Arc'teryx Rho LT Crew vs Rab Merino+ 120 Tee: which should you buy?

If saving weight is your priority, the Rab Merino+ 120 Tee wins — at 140 g it is 15 g (10%) lighter than the Arc'teryx Rho LT Crew (155 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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