Black Diamond Deploy Down 0.5 vs Montbell Plasma 1000 Down Jacket
Weight and specs compared for 2026 — and which one to choose.
Lightest down jacket at 5.3oz. Features 1000+ fill power goose down.
Ultralight 1000-fill down jacket. Among the lightest available.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Black Diamond Deploy Down 0.5 vs Montbell Plasma 1000 Down Jacket: which should you buy?
If saving weight is your priority, the Black Diamond Deploy Down 0.5 wins — at 160 g it is 25 g (14%) lighter than the Montbell Plasma 1000 Down Jacket (185 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.