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CoEfficient Fleece Balaclava

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CoEfficient Fleece Balaclava Drag to zoom



The thickest, warmest balaclava in our lineup. READ MORE
Item# APJ4QX015ALL1


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The thickest, warmest balaclava in our lineup. Learn More


The Black Diamond CoEfficient Balaclava shines on days so cold that you can only talk in vowels. The Polartec® PowerDry® High Efficiency fleece’s gridded interior delivers both breathability and wicking performance without sacrificing insulation. We also added double-layered ears with an overlapping design that lets you hear your partner clearly.

  • Polartec® PowerDry® fleece
  • Overlapping ear flaps for warmth without compromising hearing
  • One Size

Tech Specs

Materials :   Polartec® Power Dry® Fleece (180 gsm, 51% polyester, 36% nylon, 13% elastane)
Weight :   92 g (3.2 oz)
Country of Origin :   El Salvador
Apparel Warranty

Apparel Warranty

We trust what we make because we use what we make. If for any reason, you’re not 100% satisfied with your Black Diamond apparel, we’ll repair, replace or refund it. No charge. No fine print. No debate. Guaranteed.

CoEfficient Fleece Balaclava is rated 4.8 out of 5 by 5.
Rated 5 out of 5 by from Wonderful After getting this as a present, I spent the rest of the winter wearing it every time I headed out into the cold. It worked wonderfully for skiing, covering all the skin that my goggles didn't. It is thick enough to be warm, without being bulky like many of the heavier fleece balaclavas I have owned. It fit under my ski helmet perfect as well. It also fits easily into my pocket when I head inside. Often times with fleece gaiters and balaclavas, when you breathe through them for extended periods they get wet and icy. This one did a good job mitigating that issue. I spent almost an entire weekend with this on my head and never noticed any discomfort.
Date published: 2017-03-14
Rated 5 out of 5 by from Great Balaclava, But Sizing Runs Small I bought this balaclava for myself. Unfortunately, this 'clava is sized so small, I could barely pull it down over my head. I do wear a size XL helmet.There is just no way that I could comfortably wear this. My wife has inherited this balaclava, and she reports that it works great. The nightshade color looks like a dark shade of purple.
Date published: 2015-03-17
Rated 5 out of 5 by from Comfortable, Warm, Snuggly I have yet to test out this balaclava in more extreme conditions, however I tested it out last week in 10 degree (F) weather with 30 mph wind and it performed very well last week. Face and neck stayed very warm, the fabric stayed comfortable, and my breath didn't make the front excessively saturated. I'm not sure how much the side slits assist with hearing, but my other balaclavas are also thinner material. I imagine this will be the only balaclava I use this winter.
Date published: 2014-11-25
Rated 4 out of 5 by from Good & warm Great product, love the polartec fabric. - con : the turtle neck part in really tight fit & its not going very low on the neck (should be longer)
Date published: 2017-03-14
Rated 5 out of 5 by from The only negative thing was the temperature! Used this skiing several times last winter - very happy. Used this ice climbing in Hyalite a couple days @ -10F. - even happier. Used this snowmobiling through Yellowstone last winter at -23F - enough said.
Date published: 2015-11-03
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