Built to keep you warm on Chamonix’s technical couloirs and the endless ice and alpine routes of the Canadian Rockies, the highly breathable CoEfficient Hoody is a lightweight alpine layer with a hood that fits under a helmet.
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DescriptionCombining lightweight warmth, high breathability and super-quick dry time, the Black Diamond CoEfficient Hoody is the ultimate thermal midlayer for fast-and-light alpine pursuits. With an optimized Polartec® PowerDry® High Efficiency fleece fabric unique to Black Diamond, the CoEfficient insulates when you're stopped at the belay and regulates body temperature when you're out on the sharp end. A scuba-style, under-the helmet hood lets you ditch the beanie, and a single chest pocket keeps small essentials at the ready.
- Scuba-style, under-the-helmet hood
- Chamois-lined neck
- Zippered chest pocket
- Stretch cuffs
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.
Materials : Polartec® PowerDry® High Efficiency fleece (207 g/m2, 88% polyester, 12% elastane)
Weight : 345 g (12.2 oz)
Country of Origin : El Salvador
Rated 4.7 out of 5 by 23 reviewers.
Rated 5 out of 5 by Frank Nearly perfect high-tech sweats/travel outfit I stocked up on cold weather clothing/gear during the Y13/14 winter that wouldn't end and this was the first piece I bought and I am so glad I did. I basically lived in two sets of these (black & green/hoodie & pants) for 3-months (rotated sets between washings )...love the trim fit and warmth/weight ratio. I was forced to sleep in my car when caught in an ice storm while driving cross country and they kept me warm inside my 18 degree rated bag (close to zero outside)...along with the pants, the ultimate travel outfit for long international flights (recently Switzerland & India). For me (not a climber) I use them as high-tech/extra warm/close fitting sweats. My only (minor) complaints are: 1. starting to pill on the back of the forearms despite being washed inside out/in wash bags 2. zippers constantly get stuck (on both I bought) when trying to fully zip (usually takes 3-4 attempts to zip completely) April 18, 2014
Rated 3 out of 5 by jeff ok. The fleece does what it says it does, but doesn't look good for very long. After wearing a couple of times, it is already starting to pill. After a few washes, it looks like an old fleece. I would expect better from BD, and for the price, their are better options out there. I have an R1 fleece that has seen a lot of use, but looks brand new. I would not recommend. The fit is long, which is stated by BD, but doesn't suit me. April 17, 2014
Rated 5 out of 5 by Greg Warm, light with a great range! I wore the coefficient hoody on early morning rides and hikes in Moab and on day long ski tours in the the Tetons. It is warm and does surprising well as a wind stopper. I could wear the hoody under my bike helmet for some added warmth! April 17, 2014
Rated 5 out of 5 by giff I have worn it everyday since I bought it! Maybe I was missing a full zip sweater in my quiver? I love the fabric and the fit. Being a male i do search for hand pockets but I think they would actually mess up the fit. The hood is sweet. Probably my only dislike is the size of the logo --- I would like it much smaller ;-) April 5, 2014
Rated 5 out of 5 by Seth Great hoody Great fit and excellent craftsmanship. I'm 5'10" & 190 and the large fit great. March 25, 2014
Rated 5 out of 5 by Gary Love this thing! This is a great layering piece. the hood is snug fitting and you can still fasten the helmets chin strap with no problem. Not so with some of the others. Very warm for it's weight,,you can wear it on the approach and not expect to be soaked in sweat since it breaths well in this role. At the base of the climb throw a shell over it and it warms up nicely. Nice! March 4, 2014
Rated 5 out of 5 by Christopher It Does Exactly What it is suppose to Do! I wanted a low profile mid layer that could provide that delicate balance of warmth and breathability The Coefficient Hoody delivered that and more with features like spandex cuffs and helmet friendly hood. The sizing was perfect just how a mid layer should fit. February 19, 2014
Rated 5 out of 5 by Michael The go-to piece. Super wicking, low bulk, perfect for high effort, cold days. January 20, 2014