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Arc'teryx Alpha SL Anorak vs Arc'teryx Beta AR Jacket

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

Arc'teryx Alpha SL Anorak is the lighter option — 190 g lighter than the Arc'teryx Beta AR Jacket (38% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Alpha SL Anorak Arc'teryx Beta AR Jacket
Weight 305 g · 0.305 kg · 0.67 lb 495 g · 0.495 kg · 1.09 lb
Brand Arc'teryx Arc'teryx
Category Clothing - Outer Layer Clothing - Outer Layer
Arc'teryx Alpha SL Anorak
305 g

Minimalist ultralight Gore-Tex Pro hardshell, 10.8oz, emergency weather protection

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Arc'teryx Beta AR Jacket
495 g

All-round Gore-Tex Pro shell jacket. Highly durable.

Full details →

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Arc'teryx Alpha SL Anorak vs Arc'teryx Beta AR Jacket: which should you buy?

If saving weight is your priority, the Arc'teryx Alpha SL Anorak wins — at 305 g it is 190 g (38%) lighter than the Arc'teryx Beta AR Jacket (495 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 - outer layer page, or browse the full gear weight database.

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