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Brooks-Range Mountaineering Cirro Hoody Jacket

Cirro Hoody Jacket -Brooks Range Mountaineering

Brooks-Range Mountaineering is a company that specializes in lightweight mountaineering and backcountry skiing gear for mountain guides, avalanche forecasters, and ski patrollers, and while they don’t have a huge product line, their gear and apparel are nicely designed and extremely functional.

Take their new Primaloft One-filled Cirro Hoody Jacket, for example, which sports a Pertex Quantum shell, inside and out. It’s a great coat to wear as an active insulation layer when hiking up a winter peak and has a number of features that are better than the Montbell Thermawrap jacket that I currently use for this purpose.

First off, the Cirro has a hood that is large enough to fit over a climbing helmet. The hood opening can be adjusted using dual cord locks which cinch down the elastic band running along the hood brim. In addition, the jacket has a full collar which wraps around your neck and seals in your body heat, even if you’re not using the hood. Elastic sleeve cuffs and a drawstring hem further trap warm air close to your body and reduce the bellows effect when you move.

Next, the side pockets on this coat have zippers. That’s real important to me because I use my jacket pockets as extensions to my backpack. For example, it’s normal for me to wear multiple pairs of winter gloves and hats on a winter hike, and I like to have these close at hand so I can quickly change them when they wet out. Having zippers makes sure they don’t fall out of my pockets, and has always been a concern when I use my Thermawrap jacket, which does not have pocket zips.

Brooks-Range Mountaineering - Cirro Hoody

In addition to side pockets, the Cirro also has a large external zippered pocket on the left chest, and another hidden chest pocket on the right. Both pockets are large enough to fit hats, balaclavas, glacier glasses, and even ski goggles. I just love the storage.

From a warmth standpoint, this jacket is good to about 20 degrees (F) with a sweater underneath, but it’s not warm enough to replace the big puffy down parka I wear in camp or on subzero summits. Similarly, while the DWR on the Pertex is water resistant, I wouldn’t relay on it without a waterproof shell layer designed for that purpose.


Weight-wise, the Cirro Hoody Jacket weighs 14.8 oz in an XL. In terms of sizing, ignore the sizing information on the Brooks-Range Mountaineering site for his garment because it is just wrong (new product, so I assume it’s just growing pains). The XL fits me just right, with ample room for a shirt and a Patagonia R1 Sweater underneath. For comparison purposes, I have a 46-48 chest and 36 inch sleeves, but of you have questions about the sizing, I’d just call Brooks-Range Mountaineering directly. It is the kind of business where a human actually picks up the phone.

Disclosure: Sectionhiker.com received a complementary Cirro Hoody Jacket from Brooks-Range Mountaineering for this review.

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  1. Mine has a velcro volume adjuster on the back of the hood. Did yours not come with one? In regards to sizing, I find the fit the same as most every other outdoor clothing company (Patagonia, MontBell, etc.).

  2. It does now. I am embarrassed. I have been wearing this coat every day for the past 3 weeks, for hours at a time, and totally didn't see it or feel it because it's covered with pertex and I have problems seeing depth on black colored coats.

    Regarding sizing – just saying that the web site info is off and incomprehensible. Although their XL is bigger than my Montbell's, or so it seems.

    Otherwise, I love love this coat.

  3. I was actually looking at both the Brooks-Range and Montbell jackets this week. I was leaning towards the Montbell but after reading this review I may need to reconsider.

  4. The huge pockets and the zippers seal the deal for me. I also adore how this coat feels. Like silk. I wear it indoors at home because I like it so much.

  5. My Thermawrap Parka purchased in late 2010 has zippers on the pockets.

  6. I have the MB jacket, not the parka, and an older model to boot. Good to know that they have zips. Thx.

  7. This jacket looks nice, though I've had some bad experience with Pertex and wouldn't trust it either in much besides a very light rain.

  8. Do say more Chris. I haven't had any previous Pertex experience, but I'm been looking at it for other garments. It is the fabric you don't like or the DWR, or both?

  9. What weight of Primaloft is it?

    >From a warmth standpoint, this jacket is

    >good to about 20 degrees (F) with a sweater >underneath

    Without specifying your exertion level, such statements are not useful.

  10. 60g/m2 – that more specific?

  11. Seems like the weight of the jacket is heavy for such lightweight flavor of Primaloft.

    Integral Designs Rundle Jacket

    no hood

    100 g Primaloft

    15.5 oz

    Rab Men's Photon Jacket

    133 g Primaloft Sport in body, 100g Primaloft Sport in sleeves, light 60g Primaloft Sport in hood

    18.3 ounces

  12. p.s. Without the insulation, the jacket would only weigh 2 ounces less, right? A jacket of this weight with only 60 g/m insulation is not efficient from a weight/insulative value standpoint. In fact, I think a 300 weight fleece with a wind shirt over is just about equivalent.

  13. I'm not sure where you're getting your weights. Most manufacturers quote these for size Medium – which is farcical in my honest opinion. I wear an XL and that's the weight I quoted for the BRM. Thanks for the comparisons though. :-)

  14. The Brooks-Range jacket purchase is put off for now. I stopped by a local outfitter on Friday and they had all of their winter gear heavily discounted. I was able to pick up the last 600 fill down jacket in stock for $15. It weighs 20oz and has your deep zippered pockets. I sacrificed some weight, synthetic insulation and probably some quality compared to what I was looking at before but saved a ton.

  15. A couple of reference points:

    My men's small is 12.3 oz which is right in line with the other 60g PL1 garments on the market (ex. Patagonia Nanopuff).

    A 300 weight fleece is ~26 oz in a men's medium. Add an average lightweight windshirt and you're at ~30 oz.

    A 200 weight would run ~17 oz. Add the windshirt and you're at ~21 oz.

    Not exactly comparable. From a purely "warmth for the weight" standpoint, high loft synthetics always beat fleece.

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