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Arc'teryx Atom Jacket vs Patagonia Nano Puff Hoody

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

Patagonia Nano Puff Hoody is the lighter option — 4 g lighter than the Arc'teryx Atom Jacket (1% less weight). If grams matter to you, that is the one to beat.
Spec Arc'teryx Atom Jacket Patagonia Nano Puff Hoody
Weight 355 g · 0.355 kg · 0.78 lb 351 g · 0.351 kg · 0.77 lb
Brand Arc'teryx Patagonia
Category Clothing - Mid Layer Clothing - Mid Layer
Arc'teryx Atom Jacket
355 g

Insulated mid-layer with Coreloft Compact synthetic fill and stretch panels. PFAS-free DWR finish (2025). Versatile for active use in cold wet conditions.

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Patagonia Nano Puff Hoody
351 g

PrimaLoft Gold synthetic insulated hoody that stays warm when wet. Compresses into its own pocket for easy packing on variable-weather mountain hikes.

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Arc'teryx Atom Jacket vs Patagonia Nano Puff Hoody: which should you buy?

If saving weight is your priority, the Patagonia Nano Puff Hoody wins — at 351 g it is 4 g (1%) lighter than the Arc'teryx Atom Jacket (355 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