Verdict
Head-to-head · Best Down Jackets

Arc'teryx Cerium Hooded Down Jacket vs Rab Neutrino Pro

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.
Rab Neutrino Pro
Ranked #3 in Best Down Jackets
Rab Neutrino Pro
5 sources

The Rab Neutrino Pro delivers exceptional warmth using 800-fill-power European goose down, making it suitable for sub-zero and high-mountain conditions as outdoorgearlab found. The Pertex Quantum Pro shell effectively resists wind and light precipitation while remaining lightweight, though the heavy insulation makes the jacket bulky when compressed, lacking packability compared to lighter down jackets. It offers generous storage options including fleece-lined hand pockets, an internal zippered chest pocket, and a large interior drop-in pocket. This product fits winter mountaineers and those enduring extreme cold who prioritize thermal efficiency over versatility for mild weather or active spring/fall use.

Strengths
  • — Delivers exceptional warmth using 800-fill-power European goose down, making it suitable for sub-zero and high-mountain conditions.
  • — Features a durable Pertex Quantum Pro shell that effectively resists wind and light precipitation while remaining lightweight.
  • — Offers generous storage options including fleece-lined hand pockets, an internal zippered chest pocket, and a large interior drop-in pocket.
Watch-outs
  • — The heavy insulation makes the jacket bulky when compressed, lacking packability compared to lighter down jackets.
  • — Limited versatility for mild weather or active spring/fall use due to its extreme heat retention capabilities.

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.

Rab Neutrino Pro

The Rab Neutrino Pro delivers exceptional warmth using 800-fill-power European goose down, making it suitable for sub-zero conditions where lighter jackets like the Mountain Hardwear Ghost Whisperer Hoody would be insufficient. It is significantly heavier and bulkier when compressed compared to ultralight competitors, lacking the packability of the Arc'teryx Cerium.

Specs side-by-side

SpecArc'teryx Cerium Hooded Down JacketRab Neutrino Pro
Fill Power850-fill goose down800-fill-power European goose down
Insulation Type850-fill goose down and Coreloft synthetic800-fill power goose down
Shell Material15D recycled Arato nylon20D Pertex Quantum Pro ripstop nylon
Water ResistanceDWR finishPFAS-free DWR finish and hydrophobic down
Weight11.9 oz563 g / 1 lb 3 oz
Hood TypeStormHoodHelmet-compatible with stiffened brim
PackabilityPacks into its included stuff sack, about the size of a large cantaloupeabout the size of a basketball when compressed
PocketsThree zippered pockets2 zippered hand, 1 internal security
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