• Rab - Microlight Down Jacket - Men's - Army/Cactus
    Rab - Microlight Down Jacket - Men's - On-Model Front
  • Rab - Microlight Down Jacket - Men's - Army/Cactus
  • Rab - Microlight Down Jacket - Men's - On-Model Front
Rab - Microlight Down Jacket - Men'sView Larger Image

Rab Microlight Down Jacket - Men's

30% Off
$174.99 $249.95

Item #RAB00IT


Tech Specs

Pertex Quantum, DWR treatment
750-fill goose down, hydrophobic treatment
Center Back Length:
2 hand, 1 chest
Claimed Weight:
Recommended Use:
hiking, climbing, casual, skiing, snowboarding
Manufacturer Warranty:

Microlight Down Jacket

Use it as a layer on the mountain, rock it by itself downtown, or toss it into a pack for your next adventure. When winter hits you can do just about anything in the Rab Microlight Down Jacket. In fact, the only thing you won't want to do is get caught without it. This versatile insulator is filled with 750-fill down that's been given a special hydrophobic treatment to ensure that it'll dry quickly and retain its loft when you get caught in heavy snows or steady wintry mixes. For lighter precipitation and moderate snows you'll be set without a shell, thanks to the durable Pertex Quantum outer fabric. Pertex Quantum is windproof, breathable, and water-resistant, to meet the demands of everyday winter weather, and also packs plenty of rugged toughness for mountain environments. Hand pockets are easily accessed with a harness on, and for colder and stormier days, the slim fit slides easily underneath an alpine or ski shell.

  • A versatile down jacket for winter warmth in any pursuit
  • Hydrophobic down insulation keeps its loft in heavy and wet snow
  • Pertex Quantum shell offers windproof and water-resistant protection
  • Harness-compatible hand pockets keep essential gear within reach
  • Slim fit allows for easier layer under a shell
  • Insulated zipper baffle effectively stops cold wind from creeping in
  • Adjustable hem seals in warmth and shuts out the cold
  • Included stuff sack lets you pack it down and take it anywhere
  • Reviews
  • Q & A

Light Weight and Warm

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

I bought this jacket this winter because I first of all loved the design and how it looked. Since having it I could not be more pleased. The jacket is extremely warm and has performed great for me this winter. The material is durable and does a great job with keeping water out actually. It has been my favorite puffy in my quiver.

Trim fit, lightweight

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Medium

I purchased this Rab Microlight to replace an aging LLBean Ultralight 850 jacket. I loved the LLBean, but wanted a trimmer fit. At 6'2" 180lbs, but with 38-40in chest, finding things that are long enough in the torso and sleeves without being baggy across the torso is difficult. The Gearheads recommended the Rab jacket for it's Trim fit, and I can see why. I ordered a Medium and it fits great. There's not much room for layering of a bulky sweater/fleece underneath, but it's nice for running around town. I'm not sure this jacket will really take the place of the slightly heavier LLBean for extended dog walks and trips to the park, but time will tell. Winter is supposed to be mild in Buffalo this year, anyway. It would be nice to have lined pockets and around the neck, but I guess that would add to the price.

Updated review: now that I've had this jacket a few weeks, I can say that the fit and style is still great, but it's not as warm as I was hoping for. I replaced an LLBean 850 fill jacket, and this coat is clearly not as warm. You definitely will need a sweater or fleece underneath for a moderate-paced walk on a 30-40 degree day. At full price, I think you could probably find a better option. The jacket does dry quickly when caught in the rain, so that's a plus.

My go to puffer

    If you have me the choice between this and say the Arcteryx Cerium, I would choose this, even if they were the same price. I’ve had this jacket for some time now, and after testing the hooded arc cerium out (850 fill and lighter) I would still choose this over any jacket I’ve owned, tested, or borrowed from a friend. It’s 750 fill may not be considered the lightest, but it honestly is pretty damn light for me, and any “extra” weight is well used with the Pertex fabric on the exterior and hydrophobic down. The exterior is very durable for its thickness and has never had an issue with water so far (although I haven’t tried to soak it). There have been times when I have a fly rod in hand and am heading down to the water and get caught on some prickles or a branch, and there are still no signs of wear on this bad boy after plenty of use. I never leave home to the mountains without it, and wear it frequently around town. It’s got a great fit, doesn’t overheat due to poor breathability and has the perfect draft tube baffling behind the snag free zipper. It out performs its price on my opinion and is very comfy. Performs great under a Shell in winter if you need some extra protection from winds. The hooded version is also a solid choice and features an excellent good and visor.

    My go to puffer

    Favorite Down Jacket

    • Familiarity: I've put it through the wringer
    • Size Bought: medium

    I have a few down jackets and I decided to use the Microlight for our most recent backpacking trip on the Salkantay Trail in Peru, due to it being so versatile. For the record I have used and owned this jacket since 2012. Our first night we camped at 12500ft of elevation and woke up to ice on our tent and poles. I used this with a wool layer underneath and rain jacket over and handled the temps before sleeping great. While moving on trail, I used this as a stand alone piece when the wind kicked up or I started to chill down. June In Cusco, Peru the temp drops to around 30*F at night and wore this as a stand along piece as walked around downtown being tourist. The temp was approximately somewhere in the 40's.
    It has the right cut to have a layer underneath if needed and happy with the fill weight and power to keep me warm in multiple environments. I continue to be happy with the Microlight and Rab products.

    (I almost wish I bought the hooded version, but still happy with the jacket)
    photo is at 15200ft of elevation, Salkantay Pass, Peru

    Favorite Down Jacket

    I Wanted To Love This Jacket

    • Familiarity: I've used it once or twice and have initial impressions
    • Size Bought: Large

    I loved the evergreen color and look of this jacket and warmth. However it drove me nuts under the arms where it was much snugger than anything I am used to. I ordered a large. I am about 6 feet tall and 175lbs, with maybe slightly wider shoulders. I ended up returning it for a large Patagonia down sweater, which didn’t have as nice of a green color, but didn’t cut into my armpits. If they changed the fit under the arms I would definitely buy this jacket in the future.

    Awesome TECHNICAL Jacket

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Large

    This jacket is a perfect TECHNICAL mid-layer. A lot of people are reviewing, saying, the jacket has a design flaw with the armpits. But, I can confirm, it is NOT a problem. The jacket is a TECHNICAL jacket with complete range of motion in the arms, so, it will fit like a climbing layer. If you have a regular shirt on underneath, the jacket will seem to have a problem in the armpits, but it is really your undershirt that is NOT A TECHNICAL fit that is bunching up underneath the jacket. So, if you are planning to wear the jacket around town more than climbing and backpacking you might have a problem. If you are looking for a technical down jacket that you are going to wear a technical base layer underneath, this jacket is awesome and very durable. I am 6 1

    Bad fit, who has armpits like that?!

    • Familiarity: I returned this product before using it
    • Fit: Runs small
    • Size Bought: Medium

    Well sent it’s back, essentially what everyone else has said is true, the armpits are super high... uncomfortably high.

    Comfortable upper body, tight waist

    • Familiarity: I've used it once or twice and have initial impressions

    I originally bought a Large based on the reviews, but BC actually ended up sending me a Medium. It was a blessing in disguise as the chest and shoulders fit great throughout, but I do agree with other reviewers that the hem is fairly snug around the waist.
    I used the jacket for a recent trip to Banff where it was in the 30's throughout the trip. With just a baselayer and jacket I was more than comfortable hiking and standing around taking in Canada's beauty.
    The only down side is that I noticed a couple spots near the inside seams where some feathers were leaking already.

    Armpits Beware

    • Familiarity: I returned this product before using it
    • Fit: Runs small
    • Size Bought: Medium and Large

    Great overall quality jacket. Unfortunately the armpits are cut too high and dig in. Tried a medium and large, but both had the same issue. Might work for someone, but not for me. I have a Rab Xenon X in Large and don't have this problem. I'll keep trying since Rab products are quality made.

    New favorite winter jacket.

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: Large

    I've been eying this jacket for quite a while, and I'm glad I didn't miss out on it! I love the colors of this jacket and the overall fit and finish. As others have stated, it does run a touch on the small side, and I'm glad I went with the large in case I want to wear something heavier underneath.
    Grab one while they're still in stock!

    Love this jacket!

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: Medium

    I love this jacket. My other puffy is a Patagonia Down Sweater whose best days are behind it. The RAB feels like a better (tougher) shell and the down just seems to stay in place better keeping me warmer. The ONLY reason I knocked it down a star is due to the fit. I'm 5'8" 160 lbs athletic build. With a 41" chest and 33" waist the lower hem is just too tight. My chest fits...mostly, the arms are great, but the jacket tends to just stop at my waist. Maybe if my torso was a few inches longer it wouldn't matter as much but the jacket kind of bunches up a bit. Would recommend it to anyone who is a longer/lankier build!

    Very Happy with my Purchase

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: Large

    I ordered this and an Arc'terx Cerum LT for comparison
    I preferred the fit of the RAB and the inclusion of a chest pocket. I'm 5'11'' 175lbs size 42 suit , 15.5x33 dress shirt and 33" waist. The Large fit me perfectly as a baselayer and I'm able to use my Marmot Shield as a 2nd waterproof , windproof layer if I need to. I preferred the fit of the RAB to the Arc'terx and I preferred the 30D pertex fabric used on the RAB.
    Lastly the combination of blue with the red zipper is fantastic.

    Runs small

      I had to return this jacket as it runs very small. I am an athletic 6'2", 220lbs and wear L or XL depending on the brand. I ordered XL. It was too small in the shoulders and torso. The sleeve length was the only part that fit.

      lower hem is bit little tight

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size

      Shoulder and chest fit ok, but the lower hem is tight


      • Fit: Runs small
      • Size Bought: Medium

      So, the jacket itself seems like it is constructed well and would be decently warm. However, I was unable to even test the jacket as the design of the jacket makes it completely uncomfortable to wear. The medium fits me everywhere except for in the armpits. The armpits dig into you, making the jacket annoying to wear....I'm a medium in all other jackets, and this jacket fit perfectly besides this design flaw.

      It's pretty good

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

      Fit: I'm a solid medium in Arc' and Patagonia, but went with the large here based on customer reviews and the fact that I have broader shoulders. I'm glad I did from the chest up. The torso, then, is a little baggier. If it's built to be a close to the skin layer it is for narrower builds. It still works fine under my medium Arc' shell and I can throw it over most other layers I have like a Pat. R1 or even an Atom SV in the coldest situations.

      Construction: The construction and materials are as outstanding as other reviews have claimed. After half a winters season of regular use for alpine, ski, travel and casual I have only seen a few feathers come through the Pertex fabric which is soft in the hand and quiet. The collar is a good weight and comfy. The zip hand warmer pockets are massive... Nice for cramming stuff in on the fly, but loose quite a bit of heat, and you can feel it. Good-I have used them as a heat dumping feature. Bad- loosing core heat when warming my hands. Stuff sack - WTF... It's just another thing to hold onto. I've stuffed it into its own pocket and sleeve so far too. Double hem adjustments are nice because you can adjust with either hand. The pulls, cords, and plastic cord fasteners are at a nicely considered weight - fitting for a lightweight piece, but not too dainty. The cuffs are tight enough to function without any issue and are easily pulled up over the forearms when necessary. European left-sided zipper. It is crazy light and is proving very sturdy!

      It's easily warm enough into the low 30's with only a T underneath.

      Love this jacket

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

      I actually own two. I own one with a hood (previous generation, XL) and wifey got me one without for an early xmas gift (L). It's super light and super warm. Perfect for shoving into the last nook in a suitcase or a backpack. I've kept might warm with this jacket under a shell (or over it) on many an outdoor activity from climbing to skiing to backpacking.
      it goes everywhere with me.

      The zippered pockets are great without adding too much weight. Gives you some peace of mind when putting a valuable in there. The large fits me like a glove in the sleeves, which doesn't leave too much room for layers. But around the torso, there is space for a vest, even a down vest. I can wear a thick sweater under it, but maybe not a base layer, mid layer, and a shell (due to sleeves).
      The XL goes over everything with no complaints but isn't too baggy that I look ridiculous when i don't wear multiple layers.

      Great jacket, lightweight but tight

      • Familiarity: I returned this product before using it
      • Fit: Runs small
      • Size Bought: Medium

      Really like the jacket. Lightweight but seems durable. Warm almost immediately after putting it on. Bought the medium based on other reviews, but it was too tight around the armpits and across the chest. I'm 5'10", 170lbs, with athletic build. Also tight at the waist and I am size 32 pant.

      Lightweight, Trim Down Jacket

        This is a very lightweight, trim down jacket/sweater. I've either purchased or tried on about six similar models and prefer the RAB for several reasons. The fit is "trim" but has sufficient fill in the jacket to provide significant warmth. Secondly, the exterior is lightweight, nevertheless it seems to provide adequate protection from the environment and prevents the feathers from escaping. Third, the neck is warm and sits at the correct height to provide good protection from the wind. If I had to list a few issues, the zipper zips on the opposite side and the neck is clearly built for a more "stout necked" individual. Nevertheless, if you tend to wear high necked sweaters, turtlenecks or scarves, it would appear to be the correct height. Overall, I would rate this as one of the top microlight jackets offered and the "twilight" color with contrasting red looks terrific. Moreover, the Medium fits my 6'0" 165 lb. frame quite well.

        Nice Jacket

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

        This is a good-looking, well-made jacket. Good for cool, not cold weather. It is a bit tight in the sleeves. I understand that the trim fit is stylish, but it's trimmer in the sleeves than it is anywhere else. Just another inch would make it more comfortable without hurting the look.


        Men's Apparel






















        Sleeve Length











        Short 30in (76cm) 

        Regular 32in (81cm)

        Long 34in (86cm)

        How to Measure:
        For best results, take measurements over your underwear.
        Measure around the fullest part of your chest.
        Measure around your natural waist, keeping the tape a bit loose.
        Sleeve Length:
        Measure from the center back neck to your wrist.
        Using pants that fit well, measure the crotch seam to the bottom of the leg.