Arc'teryx Alpha SL Anorak Women's vs Arc'teryx Helium Jacket
Weight and specs compared for 2026 — and which one to choose.
Women's ultralight 3-layer GORE-TEX rain anorak with Hadron face fabric, weighs just 180g with StormHood and minimal features.
Ultralight waterproof-breathable rain jacket at 5.7 oz using N10p-X AC nylon with Gore-Tex technology. Packable into chest pocket. Men's medium.
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Arc'teryx Alpha SL Anorak Women's vs Arc'teryx Helium Jacket: which should you buy?
If saving weight is your priority, the Arc'teryx Helium Jacket wins — at 162 g it is 18 g (10%) lighter than the Arc'teryx Alpha SL Anorak Women's (180 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.