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Down fill for damp conditions.

Rab designed the Microlight Alpine Down Jacket with hydrophobic European goose down to keep your light, high-loft insulation working well even if you get caught out in the rain. This jacket packs 750-fill down into a slim-fitting package that's ideal for wearing as a warm mid-layer or as a stand-alone piece. If temps warm up and you find yourself not needing so much insulation, then you won't even notice this highly packable jacket in your pack. Plus, it weighs less than a pound, so you sure won't notice the extra weight.

  • Pertex Microlight and 20D nylon
  • 750-fill hydrophobic European goose down
  • Slim fit
  • Baffled construction

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Rab Microlight Alpine Down Jacket - Men's

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Here's what others have to say...

Rab Hydrophobic Down

In the early days, Rab Carrington built his brand around down insulation, and we still see down manufacturing as a core part of the Rab brand today.

All of our down insulated products are filled with the highest quality Hydrophobic Down, developed in conjunction with Nikwax. The hydrophobic treatment is applied at source and is seen as the next step in our progression in down manufacturing.

Is the length of the large longer than that of the medium? Thanks.

Responded on


Yes, the length of the large is going to be slightly longer than that of the medium, and the length is scaled in a similar way to the rest of the jacket, i.e. longer arms, slightly wider overall cut. Hopefully this helps!

2 5

Good price for hydrophobic down

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

The stiff wire visor is cool. It's pretty small for an XL and not very long when you have the hood on. It feels a size smaller than my Patagonia.
Hydrophobic down absorbs less sweat, dries faster and retains loft when you are sweating through it. This jacket has a Euro style left handed zipper. I've had my Patagonia for a year and have never seen a feather come out of it. This jacket spits out a few feathers a day after owning it for a week.

Leaking down after one week

Leaking down after one week

Responded on

My jacket did the same. It was recommended that I dry my jacket with a tennis ball to help alleviate the problem. Seems to help.

Just to add to the previous question, I currently own a Rab Neutrino Endurance in size Large. That fits well with plenty of room for layering, but I have read that the microlight is a more athletic fit.

Best Answer Responded on

DS, what you have read has been absolutely true!! the microlight is a more athletic fit. Im 190lbs @ 6'0" and i wear a Large in this jacket. Its a perfect fit for a mid layer. If you are going to use it for everyday wear/ not layering, i might suggest going up by one size. Going by your message below i would say go XL, FO SHO!!


I'm looking at buying a Rab Microlight Alpine jacket, I would like some guidance on sizing please. I am 6'2"(189cm), 215 lb's(97kg), chest is 43"(109cm), arm 35"(89cm) and waist is 36"(91.5cm). All these dimensions point toward a Large except for the waist?

I appreciate your help,

Responded on


Go with the large as these actually have a trimmer fit than most jackets. I've got a medium at 6', 170 lb's, 34" reach with 41" chest and it fits perfect, but I wouldn't want to be much bigger for it to become uncomfortable.


5 5

Awesome layer

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

I love this jacket! I bring it everywhere with me. It's so light and warm. My favorite feature is the hood's visor! It's great because it doesn't droop down over your eyes and it doesn't suck on to your face. You don't have to wear a hat to keep it out of your way! On Denali it was great too for stopping for water and just hanging at camp. It's also great for ski mountaineering. I've worn out the shoulders just a bit and feathers occasionally fly out but nothing tape can't fix! This jackets also perfect for chilling out on the porch and playing banjo.

Awesome layer

Wondering if the mens large would be a...

Wondering if the mens large would be a comparable to a ladies size 18 ?

Best Answer Responded on

Hey Patricia,

We are comparing apples and pears here. You might be able to make the Large work in the sense that the major dimensions (chest/sleeve length) will be comparable but the cut of a women's jackets are designed to fit features that are different on a mans body. You would likely notice some subtle differences like in the center back length that you would have to settle for if you decide to size up to the men's large.

Are you expecting to get in any more mediums...

Are you expecting to get in any more mediums in twilight soon?

Responded on

Hey Ben,

It looks like we have 1 more of these guys in a Medium in the color Twilight that we'll be getting in. Unfortunately I can't give you an exact date when we'll have that up on the site for purchase. The best thing to do is just keep checking the site because as soon as we get it in stock it'll be listed as available for purchase!

perfect for:

perfect for:

Some Mid-January trad laps in lower Little Cottonwood Canyon! Salt Lake City, Utah.

When are you getting the Twilight in a...

When are you getting the Twilight in a MEDIUM back in stock?

Responded on

It looks like we currently have one Twilight M in stock, and we have another ordered to come in sometime hopefully in Feb-March.

Internal stuff pocket

Internal stuff pocket

Packs down to about 17 cm x 17 cm. Perfect for multi-pitch climbing.

5 5

Lovely slim fit lightweight down

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

I love this jacket because it offers me a closer fit than competing lightweight downs (Patagonia Sweater, MH Nitrous), while offering the same insulation for a comparable price. The slim fit makes it easier to layer this jacket under a shell, and it helps minimize drafts coming from under the waist.

I'm 6'1", 185 lbs with an athletic frame. The Large fits very well.

5 5

My go-to, do everything midlayer

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

I've had this coat now for almost two years, and I've probably worn it no less than 300 days--it literally goes with me everywhere, and I've definitely put it through the ringer. Now, the only signs of wear are a small abrasion on the sleeve, and a pinhole I easily patched on the back of it. The zipper is starting to fail, but with as much as I've put this through, I'm not at all upset.

This coat fits as a great midlayer should--not boxy, but not so tight I can't squeeze a layer underneath it as well. The Pertex Microlight is surprisingly durable, and the coat looks great for around-town use as well.

5 5

Looks and Performance.

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

I use this jacket on pretty much any outdoor trip I take. I am an AT thru-hiker and am often out on weeklong+ backpacking trips, so weight is a very important consideration for me. This jacket it extremely light for the warmth it offers and has held up like a champ for dozens of backpacking trips. It fits true to size for me, I am 5'9" 155lbs and a Small is perfect. I had the similar Patagonia Down Jacket and the Small was bulky and not fitting, which means more material (i.e. more weight). I prefer this jacket all around to the Patagonia counterpart.

Microlight Alpine in the alpine

Microlight Alpine in the alpine

Size L, old model with open hand pockets (no zipper).

3 5

Lightweight, small hood, decent fit.

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

This is a nice lightweight good quality down jacket that fits well and packs up small. The pertex material is a good balance of lightweight and durable (very lightweight, not very durable but better than some of the ultra lightweight options out there). I'm 6' 185# 42" shoulders and fit a size L quite snug. The sizing is definitely smaller than the patagonia down sweater. Similar to Patagonia, the cut is not super tailored so expect more room in the waist if you're big shouldered/small waisted. That said, I chose this over patagonia because it's somewhere between a patagonia large and medium and just fits better. Rab has the annoying habit of making their hoods small and telling you to wear them under your climbing helmet. I never do this and find I can wear it over my climbing helmet although it's a bit snug. You do have to ask yourself, when buying this product "how much am I saving over synthetic?" Honestly, the weight savings on the lighter weight jackets are not as drastic. Primaloft 1 is pretty darn good and the ability to maintain some loft in wet conditions means I dont have to carry a shell for most endeavors. Additionally, synthetic insulation doesn't fly away like down if you tear the face fabric. For a very dry forecast but cold conditions, this is a great choice. Plus it looks good at the apres ski scene!

Responded on

hi! I'm moving to the north of the Netherlads and I'm thinking on getting this jacket. I'm 6'0" (183cm) and 85kg. I don't know if I should buy the Large or the Medium size. The medium size fits perfectly but I don't if it's warm enough or if I have to layer. With the large size I have space to use a layer without any problem. I'm planning to use this jacket as the shell(out layer jacket) and for every day use (walking, biking, etc). Could you give any recommendation?

Responded on

Get the large. This is a warm coat,that's well made, but you'll definitely need a layer under it when the temperature drops.