Arc'teryx Atom Jacket vs Patagonia Nano-Air Ultralight Hoody (Men's M)
Weight and specs compared for 2026 — and which one to choose.
Insulated mid-layer with Coreloft Compact synthetic fill and stretch panels. PFAS-free DWR finish (2025). Versatile for active use in cold wet conditions.
Full details →Active insulation hoody with 20g FullRange synthetic fill throughout. Highly breathable uninsulated side panels. 8.8 oz. Ideal as a mid-layer for active pursuit...
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Arc'teryx Atom Jacket vs Patagonia Nano-Air Ultralight Hoody (Men's M): which should you buy?
If saving weight is your priority, the Patagonia Nano-Air Ultralight Hoody (Men's M) wins — at 249 g it is 106 g (30%) 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.