Verdict
Head-to-head · Best Down Jackets

Decathlon Forclaz Simond MT100 Hooded 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

Rab Neutrino Pro comes out ahead by a clear margin (4.4 vs 4.1). Rab Neutrino Pro is best for: Winter mountaineers enduring extreme cold who prioritize thermal efficiency over versatility. Read the strengths below before deciding.

Decathlon Forclaz Simond MT100 Hooded
Ranked #7 in Best Down Jackets
Decathlon Forclaz Simond MT100 Hooded
2 sources$80as of Oct 10

The Decathlon Forclaz Simond MT100 Hooded delivers exceptional value through its 800-fill-power RDS-certified down, which Outdoorgearlab found provides adequate warmth for mild conditions despite the jacket's low cost. However, the non-stretchy shell restricts mobility by pulling upward when reaching overhead, and sizing runs small with a slim fit that requires buyers to order up for comfort or layering. The oversized hood lacks adjustment cords, leaving gaps around the face in windy weather. This highly packable puffer fits budget-conscious hikers and climbers who prioritize weight savings over technical precision, while those needing a loose fit or superior wind protection should look elsewhere.

Strengths
  • — Insulated with high-quality 800-fill-power RDS-certified down that provides excellent warmth-to-weight ratio.
  • — Extremely affordable price point significantly lower than comparable name-brand puffers.
  • — Highly packable design allows the jacket to zip entirely into one of its hand pockets for easy storage.
Watch-outs
  • — Sizing runs small with a slim, snug fit across the chest and waist, requiring buyers to size up.
  • — Limited mobility due to a non-stretchy shell that pulls upward when reaching overhead or making hugging motions.
  • — The hood is oversized and lacks adjustment cords, leaving gaps around the face in windy conditions.
Rab Neutrino Pro
Higher ratedRanked #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

Decathlon Forclaz Simond MT100 Hooded

At 10.3 oz, the Decathlon Forclaz Simond MT100 Hooded is lighter than the 11.9 oz Arc'teryx Cerium Hooded Down Jacket and the 15.4 oz Outdoor Research Helium Down Hoodie, and it costs far less than either. Its 800-fill down is a step below the Arc'teryx's 850-fill. Its oversized hood has no adjustment cords, where the Rab Microlight Alpine Down Jacket has an adjustable hood with a wire brim.

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

SpecDecathlon Forclaz Simond MT100 HoodedRab Neutrino Pro
Fill Power800-fill-power800-fill-power European goose down
Insulation Type800 fill power RDS-certified down800-fill power goose down
Shell Material15D polyamide20D Pertex Quantum Pro ripstop nylon
Water ResistancePFAS-free DWR finishPFAS-free DWR finish and hydrophobic down
Weight10.3 oz563 g / 1 lb 3 oz
Hood Typeoversized, non-adjustable hoodHelmet-compatible with stiffened brim
Packabilityeasily stuffs into one of the hand pocketsabout the size of a basketball when compressed
Pockets2 zippered hand, 1 internal drop2 zippered hand, 1 internal security
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