Arc'teryx Atom Hoody vs Montbell Plasma 1000
Weight and specs compared for 2026 — and which one to choose.
Versatile synthetic insulated hoody with Coreloft Compact insulation. Excellent moisture resistance and packability; ideal as standalone or layering piece.
Full details →Ultralight down jacket with 1000-fill goose down. Men's weighs just 139g with exceptional warmth-to-weight.
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Arc'teryx Atom Hoody vs Montbell Plasma 1000: which should you buy?
If saving weight is your priority, the Montbell Plasma 1000 wins — at 139 g it is 181 g (57%) 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.