Arc'teryx Atom Hoody vs Arc'teryx Atom LT Hoody

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

Arc'teryx Atom LT Hoody is the lighter option — 2 g lighter than the Arc'teryx Atom Hoody (1% less weight). If grams matter to you, that is the one to beat.

Spec	Arc'teryx Atom Hoody	Arc'teryx Atom LT Hoody
Weight	320 g · 0.320 kg · 0.71 lb	318 g · 0.318 kg · 0.70 lb
Brand	Arc'teryx	Arc'teryx
Category	Clothing - Mid Layer	Clothing - Mid Layer

Arc'teryx Atom Hoody

320 g

Versatile synthetic insulated hoody with Coreloft Compact insulation. Excellent moisture resistance and packability; ideal as standalone or layering piece.

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Arc'teryx Atom LT Hoody

318 g

Coreloft insulated hoody with excellent breathability.

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Arc'teryx Atom Hoody vs Arc'teryx Atom LT Hoody: which should you buy?

If saving weight is your priority, the Arc'teryx Atom LT Hoody wins — at 318 g it is 2 g (1%) lighter than the Arc'teryx Atom Hoody (320 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.

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