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Arc'teryx Proton LT Hoody vs Montbell Plasma 1000 Down Jacket
Weight and specs compared for 2026 — and which one to choose.
Montbell Plasma 1000 Down Jacket is the lighter option — 100 g lighter than the Arc'teryx Proton LT Hoody (35% less weight). If grams matter to you, that is the one to beat.
Arc'teryx Proton LT Hoody
285 g
Synthetic insulated hoody with excellent moisture management.
Full details →Montbell Plasma 1000 Down Jacket
185 g
Ultralight 1000-fill down jacket. Among the lightest available.
Full details →Arc'teryx Proton LT Hoody vs Montbell Plasma 1000 Down Jacket: which should you buy?
If saving weight is your priority, the Montbell Plasma 1000 Down Jacket wins — at 185 g it is 100 g (35%) lighter than the Arc'teryx Proton LT Hoody (285 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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