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Arc'teryx Zeta SL Jacket vs First Lite Vapor Stormlight

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

Arc'teryx Zeta SL Jacket is the lighter option — 65 g lighter than the First Lite Vapor Stormlight (19% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Zeta SL Jacket First Lite Vapor Stormlight
Weight 275 g · 0.275 kg · 0.61 lb 340 g · 0.340 kg · 0.75 lb
Brand Arc'teryx First Lite
Category Clothing - Outer Layer Clothing - Outer Layer
Arc'teryx Zeta SL Jacket
275 g

Ultralight packable Gore-Tex jacket for emergency protection.

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First Lite Vapor Stormlight
340 g

2.5-layer ultralight packable rain jacket with Turret Hood and 37.5 Active Particle Technology, compresses into its own pocket.

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Arc'teryx Zeta SL Jacket vs First Lite Vapor Stormlight: which should you buy?

If saving weight is your priority, the Arc'teryx Zeta SL Jacket wins — at 275 g it is 65 g (19%) lighter than the First Lite Vapor Stormlight (340 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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