• M'S NANO PUFF BIVY P/O, Drifter Grey (DFTG)
  • M'S NANO PUFF BIVY P/O, Navy Blue (NVYB)
  • M's Nano Puff® Bivy Pullover,
  • M's Nano Puff® Bivy Pullover,

Patagonia Men's Nano Puff® Bivy Pullover

C$ 181.00 C$ 259.00


C$ 181.00 C$ 259.00


  • Drifter Grey
    C$ 181.00 C$ 259.00 DFTG
    Drifter Grey (DFTG)
  • Navy Blue
    C$ 181.00 C$ 259.00 NVYB
    Navy Blue (NVYB)
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M's Nano Puff® Bivy Pullover,
M's Nano Puff® Bivy Pullover,

Additional Information

Windproof and water-resistant, the Nano Puff® Bivy Pullover is made with warm, incredibly lightweight, highly compressible 60-g PrimaLoft® Gold insulation, making it the ideal layer for chilly bivies or belays.

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Going light works wonders, until it doesn’t. We kept the overly ambitious climber in mind when making our new Nano Puff® Bivy Pullover; it’s light, windproof, warm and has the pared-down features that help shift the odds in your favor. The water-repellent, compressible 60-g PrimaLoft® Gold insulation—the most thermally efficient synthetic insulation available—has a superb warmth-to-weight ratio and maintains 96% of its warmth, even when wet. The interlocking fibers of the lightweight, 100% recycled polyester Pertex® Quantum shell and liner fabrics block wind, shed moisture and enhance the DWR (durable water repellent) performance. When the going gets cold(er), the kangaroo-style handwarmer pocket and a close-fitting, under-helmet hood with elastic binding bumps up the comfort level. The zippered drop-in torso pocket doubles as a stuffsack with a reinforced carabiner clip-in loop. With a deep venting center-front zipper, elastic bound cuffs and a drawcord-adjustable hem.
  • Lightweight, 100% recycled polyester Pertex® Quantum shell and liner fabrics use interlocking Y-shaped fibers to enhance the performance of the DWR (durable water repellent) finish
  • The most thermally efficient synthetic insulation available; water-repellent, compressible 60-g PrimaLoft® Gold insulation has excellent warmth-to-weight ratio and maintains 96% of warmth, even when wet
  • Brick quilting pattern with horizontal quilt lines on side panels stabilizes insulation and uses durable thread for abrasion resistance
  • Venting center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort
  • Kangaroo-style handwarmer pocket and zippered drop-in torso pocket doubles as a stuffsack with a reinforced carabiner clip-in loop
  • Under-the-helmet hood with elastic binding is warm and simple
  • Elastic bound cuffs and drawcord-adjustable hem seals in warmth
  • Shell and lining: 1.2-oz 20-denier 100% recycled polyester Pertex® Quantum built with Y-shaped filament technology; with a DWR (durable water repellent) finish. Insulation: 60-g PrimaLoft® Gold 100% polyester
  • 351 g (12.4 oz)
  • Made in Vietnam.

Water Resistant

 (durable water repellent) fabric finish repels light rain and snow and decreases dry times. When DWR is used in conjunction with a waterproof/breathable barrier, the DWR finish keeps the outer fabric from becoming saturated so that the breathable barrier can do its job.


We use PrimaLoft® insulation inside insulated garments for its warmth, compressibility, and soft comfort. While the human body uses energy to stay warm, PrimaLoft insulation uses a patented microfiber structure to help the body retain warmth and conserve energy.

The proprietary ultra-fine fibers of PrimaLoft insulation form a tight collection of air pockets that trap heat from your body and keep the cold out, providing an excellent warmth-to-weight ratio. When insulation gets wet, it loses these air pockets and consequently, its insulating properties. PrimaLoft ultra-fine fibers were developed to be water resistant so your insulation stays drier and maintains its insulating properties even when wet.


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Men's Nano Puff Bivy P/O is rated 4.222222222222222 out of 5 by 9.
Rated 5 out of 5 by from Great Addition to Backpacking and Climbing Gear Extremely warm and lightweight, no complaints. Can't wait to bring out on more adventures.
Date published: 2016-10-18
Rated 5 out of 5 by from Packable, warm and light Already brought it on 3 backpacking trips. Forgot how cold it gets when you sleep on top of a mountain when it's windy and wet. Super happy I had it with me. Worth every penny! Also doubles as an awesome pillow!!! Can't wait for colder weather and more adventures with this guy.
Date published: 2016-10-01
Rated 4 out of 5 by from Great; stitching could be better Took this on a backpacking trip in Patagonia. Loved it. Wore it almost every day to protect from the wind. It was warm and provided water resistance for Patagonia's unpredictable weather. Light enough to pack down, of course. I think it is a roomy fit, but not huge. My only complaint is that after a single backpacking trip, the stitches around the baffles in various places are coming undone. So, may not be the most durable piece of all time. But, it is great and will be a integral piece of gear for future backpacking trips.
Date published: 2016-07-19
Rated 5 out of 5 by from A place on the "always in the field pack" list I got one of these to replace a heavier, tattered hooded full-zip puffy, hoping it would become a go-to light layer for warmth during the "unplanned" - the wet, the cold, the just-one-more-plot-and-the-day-is-done. It has exceeded my expectations, and has changed a time-tested layering system to better accommodate the unplanned, or even just a break when I've been moving fast and need to dry layers from the inside out. The fit (M) is perfect (I'm 165, 5"8') for sliding over a couple thin layers and a Houdini, will fit (barely) over my helmet. And I confess to being a huge fan of the pouch-pocket ("What's in here anyway? Snack, field notebook, wet gloves, lip balm....hey! THERE'S my compass! Man, this is starting to be kind of like a messy purse or something. Maybe I should put some things away where they go...."). I've used it for field work near Nome and on a multi-day trip from Kahiltna to Little Switzerland. Perfect.
Date published: 2016-05-14
Rated 3 out of 5 by from Big on features, too small on fit. Full disclaimer, this review is about the FIT vs the ORIGINAL nano puff pullover. Wow, have things changed. The Small Regular Fit nano puff pullover is way roomier than the new one. They're not even CLOSE to the same. I'm returning the new one and ordering a medium. I'd consider this small an XSMALL and hopefully the MEDIUM will fit like the original small. That said, I dig the front zip pocket (don't put anything too heavy in it) as well as the pockets which were SORELY missed on the original nano puff pull over. The added hoody is the main reason I chose it, since there are days on the river when I'd rather not lose my hat in the water. ONE thing that bothers me about both the original nano puff pull over, the new hooded one and the down sweater/jacket is the TINY zippers. Yes, they're minimalist but very hard to work with gloves on. I'll post another review when I get the medium and hopefully it will fit better and do a review after having used it fly fishing on the river for spring smallies.
Date published: 2016-03-10
Rated 5 out of 5 by from Awesome Pullover w/ a HOOD!!! Ok my 1st ever experience with Patagonia On Line Store (Not Impressed at ALL). I normally am a TNF guy. The fit is perfect and buying from either Backcountry or North Face itself they let you know immediately "Thank You for Your Purchase - Your goods are coming". Okay enuf with the small stuff, hope they get the hint thou. Got my jacket slipped it on. Love the fit I am 6'2 260 and the XXL may be a lil too baggy but it is warm and hides my face when zipped up, unlike some jackets that choke us Clydesdales. This fit is awesome. Have not had it in freezing weather but I am so sure it will do just fine. Waz out for a AM surf and the brisk offshore wind had me reach for this puffy with a HOOD!!! After my freezing session I got right back into my puffy sleeping bag, hahahah serious that is what it feels like. I love it. Thank you Patagonia now I can stop looking for the perfect jacket for relaxing on a Cool/Cold/Freezing day or night.
Date published: 2016-03-04
Rated 5 out of 5 by from Finally a marsupial pouch! Everyone should Nano. The Nano puff has been my most used insulating and exterior piece since it was introduced. But only NOW can I finally stop buying new ones and reselling them when a slightly better color comes out. Why? First, the earth tone kelp color. I, and others like me, don't want to stand out in some fluorescent color on the side of the mountain or through the forest. This simple rule applies to ALL the Patagonia items I buy: I want to become the trees. The test is that I should be invisible in motion while skiing a treed glade (so that the patrol can take my pass for skiing a trail with a few rocks showing - we don't care about the stinkin' rocks). So, brown, tan, khaki, olive - no major Patagonia piece should be manufactured without at least one of these "blending-in" colors. Until now, the hooded Nanos came in a number of unsuitable colors, but I compromised with Navy, which was quite a nice rich color. But the new Nano Bivy included "kelp" (which should be a bit darker green, really, than it is), which works perfectly for "blending-in". More importantly, this Bivy with the hood is my preferred style for ALL outdoor activities. First, who has time for a hat, and losing it? We need hoods, the emergency warming tool is built right in! And zip ups are not as warm or cozy as the Marsupial pouch items. So, thanks, Patagonia for finally making the right product style and color. With my luck it will be discontinued, and I'll have to keep it forever. That is what happened with my hooded marsupial pouch down sweater in dark red. Discontinued and never reintroduced. Bring it back! While you're at it, bring back the 5.3 ounce 900 loft down shirt without the full length zipper. Make it a Down Shirt Bivy, with a light hood and a small mesh chest pocket, all under 7 ounces. And make it in an earth tone. I'm stuck with my bright blue original Down shirt (the second most amazing piece to the Nano) forever, barring a new version. So, the Nano as a pure product is good for everything. Summer backpacking, with use as a sleeping bag warmth extender. Fall and Spring trail running in cool weather. Mild temp winter skiing, with the Nano as insulation under a shell. The one insulating piece packed for a summer trip to Europe, along with a Super Cell jacket. The Nano knows no bounds. Other than the defunct 5.3 oz Down Shirt and my Marsupial Down Sweater, the Nano is arguably the ultimate Patagonia product. No outdoors person should be without one.
Date published: 2016-02-14
Rated 5 out of 5 by from #thomstokedonthis I am excited to have a nano pullover but with the added benefits of a hood, and more importantly, a hand-pouch! Though maybe not quite as warm as the normal nano (using the hood helps), this item is great for those belays on cooler days, kicking it around the campsite, etc. Your hoodies are dirty? Grabbing a brew with your compadres? The nano bivy pullover is a sure bet. And unlike those dirty hoodies, this one is windproof, and somewhat water resistant. Cheers.
Date published: 2016-01-20
  • 2016-10-25T12:12CST
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