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Description

Packable, premium down insulation for frosty adventures.

When everyone else succumbs to extreme cold and inhospitable conditions, take refuge within the Burton Men's AK BK Insulator Jacket. This jacket delivers high levels of warmth and compressibility, courtesy of the 600-fill down insulation throughout. You can choose to layer this precious puffy underneath a hardshell for the ultimate one-two combination of warmth and waterproofing, or you can simply rock this jacket by itself when high-altitude adventures lead you to cold, dry climates.

To help stand up to light precipitation, this jacket features a DWR treatment, and it's made of durable 20D nylon ripstop face fabric for resistance to wear and tear. Additional key details include underarm zip vents and multiple pockets for keeping accessories safe and secure.


  • Nylon ripstop face fabric with DWR treatment
  • 600-fill down insulation
  • Underarm zip vents
  • AK fit (loose but not baggy)
  • Fleece-lined handwarmer pockets
  • Zippered chest pocket

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Burton AK BK Down Insulator Jacket - Men's

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Here's what others have to say...

1 5

The biggest disappointment of the season

  • Familiarity: I returned this product before using it
  • Fit: True to size
  • Height: 6' 0"
    Weight: 175 lbs

It doesn't matter what you insulate with when the fabrics keeping it together are so thin that they can't even hold themselves together. I tried several of the burton insulators and was shocked that despite their materials rating and insulation ratings, the actual insulation is next to zero on this entire product line due to extremely thin shell material that will always be allowing a two way exchange of temperature. Burton claims all sorts of new and improved tech for inventing lightweight but warm jackets and sadly they have no idea what they're doing besides layering one design flaw on top of another. Hey man check out my new and super innovative 900 fill down jacket-- isn't it a beast? No it's not because I'm an innovator and decided that the shell will be composed of cotton candy, to reduce weight. WHAT.
The insulators including the latest MT insulator (yes, priced ridiculously by Burton at 300 dollars without any down at all) are so razor thin that you won't even know you're wearing them... Until you realize that you're freezing because the thing doesn't work AT ALL and ask yourself dude what happened to my 300 dollar insulator? It's there. But so is the lack of quality and clarity on Burton's part for using paper-thin fabrics without understanding the thermodynamics of insulation, conduction and convection.

PS the wind is there too. And now you're a goner.

What is the center back length of a medium?