Arc'teryx Cerium SL Down Jacket vs Forclaz MT900 Hooded Down Jacket
Weight and specs compared for 2026 — and which one to choose.
Ultralight down jacket at 8.3 ounces with exceptional packability.
Full details →Hooded down puffer for cold mountain and trekking conditions, offering high warmth-to-weight insulation at an accessible price.
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Arc'teryx Cerium SL Down Jacket vs Forclaz MT900 Hooded Down Jacket: which should you buy?
If saving weight is your priority, the Arc'teryx Cerium SL Down Jacket wins — at 235 g it is 335 g (59%) lighter than the Forclaz MT900 Hooded Down Jacket (570 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.