Arc'teryx Rho LT Crew vs Icebreaker 260 Tech Long Sleeve

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

Arc'teryx Rho LT Crew is the lighter option — 75 g lighter than the Icebreaker 260 Tech Long Sleeve (33% less weight). If grams matter to you, that is the one to beat.

Spec	Arc'teryx Rho LT Crew	Icebreaker 260 Tech Long Sleeve
Weight	155 g · 0.155 kg · 0.34 lb	230 g · 0.230 kg · 0.51 lb
Brand	Arc'teryx	Icebreaker
Category	Clothing - Base Layer	Clothing - Base Layer

Arc'teryx Rho LT Crew

155 g

Lightweight Phasic base layer for cool and active conditions.

Full details →

Icebreaker 260 Tech Long Sleeve

230 g

Midweight merino base layer for cold conditions.

Full details →

Arc'teryx Rho LT Crew vs Icebreaker 260 Tech Long Sleeve: which should you buy?

If saving weight is your priority, the Arc'teryx Rho LT Crew wins — at 155 g it is 75 g (33%) lighter than the Icebreaker 260 Tech Long Sleeve (230 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.

More clothing - base layer comparisons

Arc'teryx Rho LT Crew vs Patagonia Capilene Cool Daily Crew Arc'teryx Rho LT Crew vs Smartwool Merino 150 Base Layer Short Sleeve Arc'teryx Rho LT Crew vs Haglofs L.I.M Mid Tee Arc'teryx Rho LT Crew vs Patagonia Capilene Cool Trail Shirt Arc'teryx Rho LT Crew vs Rab Merino+ 120 Tee Arc'teryx Rho LT Crew vs Icebreaker 150 Zone Long Sleeve