• Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Black
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Cardinal
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Lichen
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Pilot
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - On-Model Front
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
    Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - On-Model Back
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Black
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Cardinal
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Lichen
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Pilot
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - On-Model Front
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - On-Model Back
  • Arc'teryx - Proton AR Hooded Insulated Jacket - Men's - Detail
Arc'teryx - Proton AR Hooded Insulated Jacket - Men'sView Larger Image

Arc'teryx Proton AR Hooded Insulated Jacket - Men's

41% Off
from $205.98 $349.00

Item #ARC00KS
Past season color

Quantity:
+

Tech Specs

Material:
Fortius Air 40 (92% nylon, 8% elastane), DWR treatment
Insulation:
[body and arms] 90g Coreloft Continuous, [hood] 65g Coreloft Continuous
Fit:
semi-fitted
Length:
hip
Center Back Length:
29.1 in
Hood:
yes
Pockets:
2 zippered hand, 2 zippered chest
Claimed Weight:
15 oz
Recommended Use:
alpine & expedition, climbing
Manufacturer Warranty:
limited

Proton AR Hooded Insulated Jacket

Putting the proverbial handle on wet weather, wind, and all-around cold temps, the Arc'teryx Men's Proton AR Hooded Insulated Jacket is the one layer you won't want to leave behind the next time you venture into the alpine. Arc'teryx designed the Proton to function as a softshell when wind and light precip catches you hiking down from the summit or belaying three pitches up a route in the alpine. Being the warmest offering in the Proton line, the AR Hoodie is packed full with 90g Coreloft—insulation composed of crimped synthetic fibers that are breathable, compressible, and water-resistant—to deliver dependable warmth in demanding mountain environments. Never one to phone-in fit, Arc'teryx made sure the fit of this jacket promotes mobility and stretch while limiting needless bulk (and weight) when every ounce counts.

  • Functions as a softshell and insulator while climbing
  • Warmest offering in Arc'teryx's Proton series
  • Softshell fabric is breathable and resistant to wind and wear
  • Crimped synthetic insulation is compressible and water-resistant
  • Nu water-repellent treatment for added protection from weather
  • Insulated hood is adjustable and helmet-compatible
  • Articulated elbows and gusseted underarms grant mobility
  • Trim fit reduces bulk and weight for fast-and-light alpine climbs
  • Reviews
  • Q & A

Tight in chest , Zipped or unzipped

  • Size Bought: Medium

I have the Proton LT and the Atom LT in same size with much less zipper issues with the Atom LT 5'8" 165#
Bought this as a more thermal weight mid layer / jacket.
Ordering the Atom AR to see if there are the same fit and zipper issues before returning.
I have lots of Arc'teryx products and very satisfied with quality.
This may not make the cut do to fit and zipper issues.

tight across the chest / annoying zipper

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: XL

I'm 5'10" 195 lbs and typically between a L and XL. From Arc'Teryx I typically get XL for a loose fit and L for a tight/athletic fit.

After reading reviews and researching I got an XL. The XL is still too tight from the underarms/shoulders across the chest. I would not recommend this for active use even after sizing up as it slightly constricts arm movement and isn't a stretchy material. If you are broad shouldered/chested person this isn't going to work for you.

I was aware the zipper slipped down but actually experiencing it annoyed me more than I expected. I realized I never wear things fully zipped or unzipped and having the zipper slide down bothered me. I find myself thinking of making sure the zipper doesn't slide down instead of just wearing the piece.

On the positive side, I like the feel of the material and the warthm level is really nice. not too hot but warmer than I expect from such a light piece. I can recommend this piece if you do not need a large range or motion and plan on having it fully unzipped or fully zipped all the time.

Unanswered Question

Is the Cardinal color orange or red?

Light and warm

    This is my go to jacket for fishing on cold days. Light and breathable jacket that is not too bulky to fit in my wieghters

    Great jacket

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Medium

    I purchased this as a replacement for my nano air that no longer fits. This is a great jacket. I’m 5’10” 185 lbs. with broad shoulders. I purchased a medium to layer under my Alpha SV and to wear alone when there isn’t much wind or precipitation.

    It is a little tight in the upper back, shoulders, and chest, but it’s a trim fit, so I kind of expected that with my build. I have a medium Alpha SV, which is Arc’teryx “regular fit”, that has ample room in the shoulder/chest area. Overall, the sleeve and torso length are spot on, so I decided to keep it rather than going up to a large and risking having a lot of extra fabric flopping around. Because of the stretch of the fabric the fact that it is a little snug does not restrict mobility and it stays at my waist with my arms overhead. I actually much prefer this jacket to my 2016 Nano Air size large that I am swimming in after losing some weight. It seems more durable as well.

    The material is great. It breathes well and is much warmer than meets the eye. The down puffy is now kept in my pack for emergency situations. There really is nothing about it that I would change.

    I highly recommend this as a layering piece for frigid temps with just a baselayer and a shell, or stand alone jacket when the weather is cold, but decent, and you’re on the move!

    Under the Sun

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Large

    Been using this jacket for any kind of hiking or winter holiday, even under the sun, my body didn't feel too hot (surely breathable), I remember my first time hiking the same mountain with cheap jacket (felt super sweaty and hot). As a result, I love this product very much.



    My winter holiday to japan, most of my family members used 3-5 layers to heat up their body meanwhile I only used 1 t-shirt and 1 arcteryx proton AR jacket. Superb result!



    No faulty so far, very recommended.

    Warm and Breathable

      I picked up this jacket mainly because I'm a jacket hoarder and love Arcteryx. I have an Atom AR, Cerium LT, Iser, and Atom SL. Did i need this jacket? No. But I am glad i have it. Its a great mid-layer and the warmth to breathability is top notch.

      First Arcteryx

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: Medium

      Got a different Arcteryx jacket first and didn't like the athletic cut on the small so bumped up to a medium for this guy and it fits perfect for my size. feels really nice and is an awesome jacket. Really warm as well, I was surprised about that. Synthetic insulation is getting better every year. the only thing that seems odd is that there are a few loose strands of stitching in places, I just trim them with scissors and it's all good but would expect a little more precision from Arcteryx.

      My favorite insulation

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Medium

      Over the past year the Proton AR has become my favorite insulation. It's as warm as my high-pile fleece, if that gives you some reference. Surprisingly, it also breathes nearly as well as that fleece, yet when I'm sweating hard under a shell, I don't get nearly as much condensation inside the Proton as I would with that fleece. Despite this breathability, I've never noticed wind getting through.

      One quirk is that the waist is cut pretty snug. I tried on both the medium and large, and even as skinny as I am (6'0" and 165), I almost got the large just for a little slack. I don't know if Arc'teryx has changed this with the current model, so you might want to try both.
      Also, a note for the more fastidious out there: I've read gripes that the CoreLoft occasionally comes through the fabric, like goose down will. I've found the same pinch-and-pull technique gets the CoreLoft back where it should be. Knowing this, I would still buy the Proton without hesitation.

      Wow - i only have 3 jackets with Coreloft (including a Proton) but have never heard of any poking through the shell! Or does it come through the liner??

      Coreloft pokes through the liner, not the outer shell.

      I just got the medium, and have not found it to be snug at hips at all. It feels looser than last years Proton Lt, I'm thinking they've adjusted their sizing proportions in the newer model. I'm 5'8, 175, athletic build and usually have a hard time fitting my upper back and shoulders but the sizing on the Proton Ar was perfect for me!

      Great Jacket

      • Familiarity: I've used it several times
      • Fit: True to size

      I own the Nuclei FL jacket and was very impressed by the warmth Coreloft provides in such a light garment so I upgraded to a more durable model like this one. Really like it. Two hand and two chest pockets, a hood and still super light with the added benefit of wind and weather resistance. Only glaring drawback is when you put stuff in the pockets of any bulk you have two choices for the zipper: zipped all the way and unzipped. Anywhere in between and as soon as you take a breath the jacket unzips itself. The main jacket zipper is very thin and tiny and the teeth provide no resistance for staying in place. Not sure if this actually a defect or by design. My Nuclei jacket does not do this. Makes the pockets semi-useless for gloves and other bulkier items.

      x2 on this review, the zipper on this jacket does not hold if you try to leave it zipped mid-chest.

      Rock Solid Midlayer

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: XL

      Very Solid Jacket for Mountain Alpine Cold Weather, great protection in the chest, arms are well insulated very flexible even when adding a shell. I use it with a Beta AR Shell and they are great together just enough room in the Proton for myself 5'11 200 lbs. says semi fitted does not seem like it because it fits my older not fitted body. I would recommend and it will be durable not really meant for a around town layer it like abrasion!

      Perfect "All Round" Softshell/ Midlayer

      • Familiarity: I've put it through the wringer
      • Fit: Runs small
      • Size Bought: Large

      The Arcteryx Proton AR is the perfect blend between a durable softshell and a warm breathable synthetic midlayer. I use this jacket for practically everything, from skiing, hiking and running around town to climbing walls on the wasatch. If your thinking about a mid layer from arcteryx and you want something a little warmer and more durable then the ever popular Atom LT get the Proton AR you'll be glad you did.

      Do you have any reservations regarding the overall length of the jacket? I am 6'1" and when trying on the medium-sized model I found out that when I raised my arms half of my stomach got exposed. Did you experience a similar thing while wearing the large model?

      a better atom

      • Size Bought: medium

      This jacket is hands down the best touring midlayer i have ever used. Before that my go to would be the Atom but ever since our Arc rep stephen mentioned this had some tech built in making its warmth to breathability even better then the atom i was sold. The crimped material not only breathes better but also packs down a lot smaller. If you are looking for a step up from the atom with more technical ratings this is the piece. Although i use this for touring its built for climbing so fits accordingly. I got the medium and i should have gotten the large (6 foot 185lbs). My job is to make those mistakes so if you are in between sizes give me a call to chat about it or discuss any layer questions. My contact info is listed below!

      LOVE THIS JACKET!

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: Medium

      Bought this jacket because I needed something that would be suitable for AT skiing that was trim and not too bulky and was also warm and packable. This jacket delivers on all counts! I have also used it ice climbing and its athletic fit makes it possible to actually see your feet and harness! Withstood a lengthy bushwack without fail also!

      Good all around jacket!

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: XL

      I bought this jacket because i needed something for day to day use with good insulation and I'm very stoked on my purchase. This jacket is great! Holds up to the cold weather out here in Utah! It also is a great jacket to layer up with! Merino wool baselayer, this jacket and a 2.5 goretex shell in 10 degrees with the snow dumping and I was still breaking a sweat!! Can't wait to use this jacket in the spring while climbing!

      That sweat is probably the Gore-Tex's fault... I just got this hoody and the breathability seems to be better than my Nano-Air...

      Great Softshell

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: large

      Great jacket. Just bought it. It is like a hybrid of an Atom LT, a Patagonia Nano Air, and a softshell. It breathes better than the Atom. I won't go so far as to say it breathes better than the Nano Air, but it is close. It has been a great jacket for 20-30 degree days. The Proton AR also layers easily under a shell (for me a Beta AR and Theta AR). The jacket is great for hiking and great for around town use. It is an athletic fit. So, if you are buff or have a gut, then you may want to buy a size up. I am 200 lbs and muscular, so, the large fits well.

      Arc'teryx – Men's Proton AR Hoody

      An all-round, versatile hooded jacket created to balance warmth and airflow, the Proton AR Hoody is the warmest option in the Proton series. Designed to perform both as a softshell outer layer and as a mid-layer under a waterproof shell, it leverages advanced material technologies that provide thermal protection while allowing air to pass freely in and out. This helps prevent vapour accumulation and allows the Proton AR to regulate comfort over a wide range of temperatures and conditions.

      Arc'teryx

      Men's Apparel
      Alpha Sizes
       XSSMLXLXXL
      Chest

      36in

      (94cm)

      38in

      (97cm)

      40in

      (102cm)

      43in

      (109cm)

      46.5in

      (118cm)

      50in

      (128cm)

      Waist

      29in

      (74cm)

      31in

      (79cm)

      33in

      (84cm)

      36in

      (92cm)

      39.5in

      (100cm)

      43.5in

      (110cm)

      Hip

      36in

      (92cm)

      38in

      (97cm)

      40in

      (102cm)

      43in

      (110cm)

      46.5in

      (118cm)

      50in

      (128cm)

      Sleeve

      32in

      (81cm)

      33in

      (84cm)

      34in

      (86cm)

      35in

      (89cm)

      36in

      (91cm)

      37in

      (94cm)

      Crotch to Floor:
      Short

      30.5in

      (77cm)

      31in

      (79cm)

      31.5in

      (81cm)

      32.5in

      (82cm)

      Crotch to Floor:
      Regular

      32.5in

      (82cm)

      33in

      (84cm)

      33.5in

      (86cm)

      34.5in

      (87cm)

      Crotch to Floor:
      Tall

      35in

      (90cm)

      36in

      (92cm)

      36.5in

      (93cm)

      37in

      (95cm)

      Numeric Sizes
       282930313233343638
      Waist

      28in

      (71cm)

      29in

      (74cm)

      30in

      (76cm)

      31in

      (79cm)

      32in

      (81cm)

      33in

      (84cm)

      34in

      (86cm)

      36in

      (91cm)

      38in

      (96cm)

      Hip

      35in

      (89cm)

      36in

      (92cm)

      37in

      (94cm)

      38in

      (97cm)

      39in

      (99cm)

      40in

      (102cm)

      41in

      (104cm)

      43in

      (109cm)

      45in

      (114cm)

      Pant Inseam

      32in

      (81cm)

      33in

      (84cm)

      33.5in

      (85cm)

      34in

      (86cm)

      35in

      (89cm)

      Crotch to Floor:
      Short

      30in

      (77cm)

      30.5in

      (78cm)

      31in

      (79cm)

      31.5in

      (80cm)

      32in

      (82cm)

      33in

      (84cm)

      Crotch to Floor:
      Regular

      32in

      (82cm)

      32.5in

      (83cm)

      33in

      (84cm)

      33.5in

      (85cm)

      34in

      (87cm)

      35in

      (89cm)

      Crotch to Floor:
      Tall

      35in

      (89cm)

      35.5in

      (90cm)

      36in

      (92cm)

      36.5in

      (93cm)

      37in

      (94cm)

      38in

      (97cm)

      How to Measure:
      For best results, take measurements over your underwear.
      Chest:
      With arms relaxed at your sides, measure under your arms, around the fullest part of your bust/chest.
      Waist:
      Measure around your waist at the narrowest part.
      Hip:
      Standing with feet hip width apart, measure around your hips at the widest part.
      Inseam:
      From standing position, measure from your crotch to your ankle.
      Sleeve:
      With arm relaxed at your side and slightly bent, measure from center back neck, across shoulder to elbow and down to wrist.
      Crotch to Floor:
      With bare feet, measure from your crotch down the inside leg to the floor.
      *Actual inseam length will vary depending on what Arc'teryx deemed suitable for end use footwear.