Verdict
Head-to-head · Best Down Jackets

Arc'teryx Cerium Hooded Down Jacket vs Patagonia Down Sweater Jacket

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Arc'teryx Cerium Hooded Down Jacket comes out ahead by a narrow margin (4.6 vs 4.4). Arc'teryx Cerium Hooded Down Jacket is best for: Ultralight backpackers who prioritize packability and precise layering under a shell. Read the strengths below before deciding.

Arc'teryx Cerium Hooded Down Jacket
Higher ratedRanked #1 in Best Down Jackets
Arc'teryx Cerium Hooded Down Jacket
2 sources$400as of Oct 10

The Arc'teryx Cerium Hooded Down Jacket leverages 850-fill goose down and Coreloft synthetic insulation to deliver exceptional warmth-to-weight efficiency, weighing just 10.2 ounces for a women's small. Switchback Travel found the premium down provides heat retention comparable to significantly heavier loads, while Better Trail highlighted that strategic synthetic placement in high-moisture zones maintains performance when damp. However, the jacket carries a premium price point of $400 and features a trim fit designed strictly for layering under shells; Better Trail explicitly warned that this silhouette does not allow for wearing over bulky midlayers. Outdoorgearlab noted the PFC-free DWR finish offers only average water resistance during testing, requiring users to add an outer shell in sustained wet conditions. This jacket fits ultralight backpackers and ski tourers who prioritize packability and precise layering, but those seeking a relaxed fit or standalone weather protection should look elsewhere.

Strengths
  • — Uses premium 850-fill goose down combined with Coreloft synthetic insulation in moisture-prone areas like the collar and underarms to maintain warmth when damp.
  • — Delivers an exceptional warmth-to-weight ratio, weighing approximately 10.2 ounces for a women's small and 11.9 ounces for a men's medium.
  • — Constructed with recycled Arato nylon face fabric (15D on current model) treated with a PFC-free durable water repellent finish.
Watch-outs
  • — Carries a premium price point, typically retailing between $375 and $400.
  • — The trim fit is designed for layering under shells and may feel restrictive when worn over bulky mid-layers.
Patagonia Down Sweater Jacket
Ranked #4 in Best Down Jackets
Patagonia Down Sweater Jacket
1 source$205as of Oct 10

The Patagonia Down Sweater delivers an excellent warmth-to-weight ratio using 800-fill-power traceable down, allowing it to compress into its internal chest pocket for highly efficient packability. However, the standard version lacks a hood and relies on a DWR finish that only sheds light moisture; outdoorgearlab warned that down loses insulation when wet, making it unsuitable for sustained rain or high-output activities without an additional shell. This jacket fits dry-cold environments and camp use but should be avoided by those needing all-weather protection or who require integrated headgear.

Strengths
  • — Filled with 800-fill-power traceable down, providing excellent warmth-to-weight ratio.
  • — Shell constructed from NetPlus ripstop material made of 100% postconsumer recycled fishing nets.
  • — Stuffs into an internal zippered chest pocket for high packability and compact storage.
Watch-outs
  • — The standard jacket version lacks a hood, requiring separate headgear in precipitation.
  • — DWR finish only sheds light moisture; the down loses insulation properties when wet.
  • — Sewn-through baffle construction creates minor cold spots along seam lines.

How they stack up

Arc'teryx Cerium Hooded Down Jacket

The Arc'teryx Cerium Hooded Down Jacket offers a trim fit designed for layering under shells. It utilizes 850-fill goose down combined with Coreloft synthetic insulation to maintain warmth when damp, whereas competitors like the Decathlon Forclaz Simond MT100 rely solely on standard 800-fill power down.

Patagonia Down Sweater Jacket

Its sewn-through baffle construction creates minor cold spots along seam lines.

Specs side-by-side

SpecArc'teryx Cerium Hooded Down JacketPatagonia Down Sweater Jacket
Fill Power850-fill goose down800-fill
Insulation Type850-fill goose down and Coreloft synthetic800-fill-power goose down
Shell Material15D recycled Arato nylon100% recycled NetPlus ripstop
Water ResistanceDWR finishDWR finish
Weight11.9 oz12.1 oz
Hood TypeStormHoodadjustable hood
PackabilityPacks into its included stuff sack, about the size of a large cantaloupeStuffs into internal pocket
PocketsThree zippered pockets—
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