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It's wonderful because it's woolly.

A midweight fleece may be the most versatile piece of winter wear you'll ever have, and think of the Icebreaker Men's Sierra Fleece Hooded Jacket as the super-soft, all-wool deluxe version. This merino wool hoodie has a brushed back for next-to-skin softness and comfort, plus all that merino wool is famous for: breathability, insulation, odor-resistance, and antimicrobial protection. The Sierra also has a head-hugging hood and storm flap for extra protection against the cruel, cold world and a sweet chest pocket with media port, so you can revel with song on your summit ascent.

  • Midweight merino wool jersey
  • Regular fit with full zip
  • Fixed hood
  • Internal storm flap
  • Set-in sleeves
  • Chest with media port and two hand zippered pockets

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Here's what others have to say...


A Rare Miss for Icebreaker

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

I love Icebreaker, especially their more fit items. This jackets is very warm, a nice heavy weight fleece. The fleece napping is on the inside, which makes it even warmer by trapping air inside.

I'm returning the jacket because it runs short--especially the sleeves. The cut is also really boxy and square-ish. Not the fit I've come to expect from IB, but perhaps that fits someone else.


Ultra high quality

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

I couldn't tell from the pictures, but the outer portion of the sleeves ,the tops of the shoulders, hood, and the lower back are all covered with a durable synthetic material.

Other reviewers said this runs small, but this fits pretty much the same as all of my other icebreaker tops. This is a slim athletic cut garment, so it's not really baggy.


best hoodie ever owned!!!

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

top notch quality, nice fit, a little on the small size so I would order one size up. great looking hoodie with all the benefits of merino wool. what more could you ask for in a all season hoodie.


Love it

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

I really like this jacket. It is warmer than most hoodies that I have and packs pretty small. I have been using it under a snow shell when skiing in CO/UT and it keeps me plenty warm. It is comfortable enough to wear around the house as well.

The one thing that does bug me a tad bit is that the neck/collar doesn't sit right ever, it tends to curl when not fully zipped up.