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Hit the mountain in fast-and-light style with the Rab Men's Infinity Down Jacket. Yup, chill-crushing 850-fill goose down. Wind is always a factor of mountaineering, and the Pertex outer shell wards off freezing breezes handily while you top out a climb or trek to the summit. Lycra in the insulated hood helps to secure it around your face, and elasticized cuffs lock out cold leaks around your wrists. Rab polished off the Infinity with a short cut and highly-packable design so it stashes into its own, included stuff sack and rides along in your day pack without eating up all the available space.

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Infinity Jacket Rab The Best.

This is my second of the Rab Infinity Jacket, Dark Shark color, a great jacket with a perfect finish, your fabric is magnificent, the Pertex Quantum GL nylon allows the nylon does not tear as easily after a crash, I've got to fall with my motorcycle wearing this jacket and it keeps intact after the crash, stunning! I've had other jacket in the same style that tore easily, but this made ??me so surprised that I ended up buying another! It is worth every penny invested in a jacket like this, buy, try and be happy!

Infinity Jacket Rab The Best.

Great jacket

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

I'm 6"2 230 and I have it Ina XXL it fits great ... I like the jacket a lot due the weight and the warmth I wear this jacket with a reg t-shirt in 30-40 degree weather slight wind and it does a great job !!!!!! I'd suggest this jacket to anyone looking for a light weight jacket that's truly warm the pockets are in perfect position zipper is nice and strong inside is cool too all around great jacket ... I purchased it 1st week in January been wearing a lot ....


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

This jacket should be named Rad not Rab. Supper cozy and compatible. Amazing way of being warm when you need it but breathing and not sweating out when you dont. Best part is...I won a drawing at a local tele/ski movie for a Backcountry gift card and this is what I picked up. Thanks Backcountry!

GEAR REVIEW: Rab Infinity Down Jacket

The Infinity jacket by Rab is designed to be super-light, yet very warm. This 850 European down jacket weighs only 18 oz and even has a hood. The Infinity is geared towards those who need lightweight performance without sacrificing warmth. Find out more about the Rab Infinity jacket in my video gear review.


    I needed a down coat for mountaineering and this works well. Light weight, compressable, 850 down and a lot of it. Hood works very well and the elastic fabric holds it tight to your head. Collar comes up above chin height for extra protection. Feels weightless when it's on. Very pleased with the jacket. Things I don't like: shiny fabric looks a little too metro for me; so much down fill that you look quite silly with the hood up and generally look like a marshmello. That said , you're buying this for function more than fashion which is why I'm still pleased. Would have given 5 stars if the fabric was not so shiny.

    Love it more than I thought I would

    • Familiarity:I've put it through the wringer

    Bought this to fill a key gear gap in my backcountry gear closet, and it's become a day-to-day piece as well. Great fit/cut, super cozy, and an awesome burnt orange color (Juicy). I'm 5'7", 150 and the small fit perfectly. And it packs super small -- ideal for lugging along as that extra layer.

    Warmest buffoon ever.

      The cubed pillows surrounding you, and especially with the hood on, make you look like a complete buffoon. That said, you will be the warmest and least encumbered buffoon to tromp around in the sub-zero. Rab did everything they could to make this jacket light, including stretchy wrist collars instead of velcro. I would have preferred velcro. The electric orange might as well be used for highway markers, as you can spot me from space. The Pertex behaves like most other ultra-light dwr nylons. It weights nothing, and really isn't nearly as ripstop as they make you believe. I did easily tear a nice little hole in the back, but that's the trade-off for weight. I'm 5'9", 150 pounds, and the medium is roomy enough for a couple layers underneath.

      I've had both the Mountain Hardware Sub Zero and Phantom. This jacket is a solid upgrade from the Phantom, and I will never look back.

      Just be warned, if you put the hood on, you'll be warm, but no one will take you serious.

      Warmest buffoon ever.

      I'm 6'0'' and 155 lbs and wondering whether...

      I'm 6'0'' and 155 lbs and wondering whether I need M or L. Looking at having it for a long time, so if I put on 10 or 20lbs within the next ten years what will be my best option for then and now? I know down only works when it's close to the body (plan on layering it, obviously). I always assumed large for a puffy!

      Would this fit a tall thin dude? 6'4" 215....

      Would this fit a tall thin dude? 6'4" 215. Most jackets run a bit short, does this one?

      I can just barely get away with the sizing on the Patagonia Down Sweater (XL), but it's too baggy.

      every site I have visited demonstrate...

      every site I have visited demonstrate variations in the color especially the blue. Your sites basic overview demonstrates a very royal blue (as do most), while individuals photos demonstrate a smoky blue. Just trying to decide on wh/ color I like prior to purchase