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Arc'teryx Atom LT Hoody vs Rab Xenair Alpine Light Jacket

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

Arc'teryx Atom LT Hoody is the lighter option — 18 g lighter than the Rab Xenair Alpine Light Jacket (5% less weight). If grams matter to you, that is the one to beat.
Spec Arc'teryx Atom LT Hoody Rab Xenair Alpine Light Jacket
Weight 318 g · 0.318 kg · 0.70 lb 336 g · 0.336 kg · 0.74 lb
Brand Arc'teryx Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Arc'teryx Atom LT Hoody
318 g

Coreloft insulated hoody with excellent breathability.

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Rab Xenair Alpine Light Jacket
336 g

Stretch synthetic insulated jacket with Stratus PrimaLoft and a wind-resistant face, made for active mountain layering.

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Arc'teryx Atom LT Hoody vs Rab Xenair Alpine Light Jacket: which should you buy?

If saving weight is your priority, the Arc'teryx Atom LT Hoody wins — at 318 g it is 18 g (5%) lighter than the Rab Xenair Alpine Light Jacket (336 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 - mid layer page, or browse the full gear weight database.

More clothing - mid layer comparisons