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Arc'teryx Alpha SL Anorak vs REI Co-op XeroCloud 3L Rain Jacket

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

Arc'teryx Alpha SL Anorak is the lighter option — 75 g lighter than the REI Co-op XeroCloud 3L Rain Jacket (20% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Alpha SL Anorak REI Co-op XeroCloud 3L Rain Jacket
Weight 305 g · 0.305 kg · 0.67 lb 380 g · 0.380 kg · 0.84 lb
Brand Arc'teryx REI Co-op
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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REI Co-op XeroCloud 3L Rain Jacket
380 g

Men's packable 3L rain jacket at 13.4 oz (380g) with seam-sealed GORE-TEX construction and pit zips for ventilation.

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Arc'teryx Alpha SL Anorak vs REI Co-op XeroCloud 3L Rain Jacket: which should you buy?

If saving weight is your priority, the Arc'teryx Alpha SL Anorak wins — at 305 g it is 75 g (20%) lighter than the REI Co-op XeroCloud 3L Rain Jacket (380 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.

More clothing - outer layer comparisons