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Laugh in the face of savage sub-zero temperatures thanks to the supreme warmth of the Rab Men’s Neutrino Endurance Down Jacket. The durable Pertex Endurance face fabric wards off wet weather conditions while the Pertex Quantum lining gives you freedom to move so you’re always the first one at the bottom of the run. Since this jacket has incredibly warm Nikwax hydrophobic European goose down Insulation with stitch-through baffle construction, your body heat stays exactly where it needs to. But despite its massive warmth and cozy fit, it easily packs down inside the included stuff sack so your already-bursting expedition pack won't blow a seam.

  • Pertex Endurance face fabric
  • Pertex Quantum lining
  • Nikwax hydrophobic European goose down insulation
  • Stitch-through baffle construction
  • Chest and hand-warmer zip pockets

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Here's what others have to say...

Sizing? I am 6'2", 215 lbs. 43 chest, 35 sleeve, 35 waist. I just had to return an Arcteryx Atom AR size large because it was too small in the chest/shoulders/armholes. Should I get a L or XL in the Neutrino?

Best Answer

44 chest, 35 sleeve. I can wear the 2015 edition large comfortably over a light base and a Patagonia Nano Puff as a 2nd layer. The < 2015 large was slightly tight in the armholes. If I wanted to wear a thicker 2nd layer I would order a XL. Of course YMMV.


First time out was great

  • Familiarity:I've used it once or twice and have initial impressions
  • Fit:True to size
  • Height: 5'10"
    Weight: 185 lbs
    Size Purchased: Large

Took it for a test run on mount Adams. First off, I love the size that it stuffs down to, it fit in my day pack with room to spare. The day we went there was 3 feet of snow in the forecast, so we planned an early summit. I put it on once we were on the glacier field and the temperature was around 30. I had a fleece under layer that I ditched after I put the jacket on, (I tend to run warm). It really flexed its muscle on our way back down, when the weather began to turn. 30 mph winds, and heavy snow. It performed beyond my expectations, the wind and water didn't come through once.

Unanswered Question

Is the current jacket being offered their "revised Autumn/Winter 2015" version? The zips are now "YKK Aquaguard" and the hood was updated and has a Velco-free roll down system to stow away hood? Is there a picture of what that looks like? thanks..


Love it!

    This is the second RAB jacket that I have purchased. Really what lead me to purchase my second one was my experience with the first RAB - the quality and durability is outstanding. The warmth is also excellent - especially when compared to similar jackets of other brands. My first RAB jacket I have had for 4 years and there is nothing wrong with it....still works like a charm...I just wanted to get one with a hood. To me these things are like the best kept secret from the big box stores (i.e. REI..). BTW - I work in a corporate setting and thought this thing wouldn't be appropriate given it is not very formal but I am astonished at the number of compliments that I have received. I wear this thing in MN where winters are cold and it keeps me toasty warm!


    All my complaints have been addressed!

    • Familiarity:I've used it once or twice and have initial impressions
    • Fit:True to size
    • Height: 5'8"
      Weight: 160 lbs
      Size Purchased: Medium

    The original Rab Neutrino has been a VERY popular puffy for years. This updated version addressed BOTH of my major complaints about the old jacket.

    Rab has improved the zippers by using the bigger-toothed YKK VISLON zippers which move smoothly and quickly. My biggest complaint on the older version was the finicky old zippers which were difficult to start and which wouldn't zip up quickly with a single pull. Rab's competitors (like Mountain Equipment) started using the better zippers two years ago. Rab has finally followed suit! The pocket zippers are also updated!

    Secondly, the fit has improved! (At least for me). I'm 5'8 with a 40-inch chest wearing a medium. The older style model felt SNUG under my armpits and felt restricting with activity. This had to do with the fabric pattern and how the arms were stitched to the torso. My new Rab no longer feels snug under my armpits when I'm moving! Awesome!

    Rab claims that the new jacket also has more down (25 more grams, just shy of one ounce). I don't really notice this. My last gripe is that Pertex Endurance isn't the most breathable fabric, but given the weight and cost considerations, and given that this puffy really is a belay puffy (not really for strenuous sustained aerobic output), I understand that the use of Endurance is good compromise.

    I haven't used it long, but I know how it will perform based on the old Neutrino. All my complaints about the old Neutrino have now been fixed! I'm stoked!