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Because otherwise, getting out of your sleeping bag on chilly mornings sucks.

Who likes getting out of sleeping bags in the morning when it's cold out? Nobody, unless you have the Patagonia Men's Nano Puff Insulated Jacket to ease the chill. With the recycled polyester exterior and PrimaLoft One insulation, your top half will feel like you never left your sleeping bag. Wear this Nano as your top layer on chilly backpacking mornings, and layer it under your ski shell for mid-winter storms. When it gets too warm, you can pack it down into its chest pocket and clip it to your pack or harness until you need to get hot and cozy again.

  • Ultralight recycled polyester has a DWR finish to repel water, and wind glides over its slick coating so you stay warm in cold conditions
  • Insulated with PrimaLoft One for warmth (even if the insulation gets damp) and compressibility
  • Jacket stuffs into its chest pocket, and pocket has a loop to hook to your carabiner
  • Dual-adjusted drawcord hem keeps cold out and heat in
  • Two hand-warming pockets and one chest pocket store small items

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Patagonia Nano Puff Insulated Jacket - Men's

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Here's what others have to say...

5 5

husband loves it

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: True to size
  • Height: 5' 9"
    Weight: 180 lbs
    Size Purchased: Large

My husband has begged for this jacket and he hates jackets, so I bought it for him now that it's on sale. (He wanted camp green). He wears XL size T-shirts, but L Patagonia button-down shirts, so we went with a L for this. It fits him great across the shoulders. The sleeves are a little long, but he says he doesn't mind - better too long than too short. Definitely room to layer underneath but not so big that it looks too big. We are taking it to Olympic National Park in a few days so will update after the trip. Looks awesome. He's hard to please, and so far so good.

4 5

Very versatile jacket

This is my second Nano Puff so I'm a fan. The first one gets a heavy amount of wear and is looking a little beat up so I replaced it with a new one. The new jacket looks fantastic and I love the color but it's tighter all the way around. I read a number of reviews that said this jacket typically fits a little loose so maybe they changed the measurements slightly? My new Nano Puff is probably 2" tighter across the middle. I need to drop a few pounds anyway so I ended up keeping the jacket but I was a little disappointed because I'm the size that's just in-between XL and XXL. In the new jacket, I should have returned it for an XXL if I wanted the movement and fit of my previous jacket. Overall, however, it's still a great jacket that has all of the features I love about the original one. I wear the old one ten times for every one time I wear a different jacket. Great for layering on cold ski days. Lightweight and awesome. Synthetic insulation so it works when sweaty or wet from snow. On spring days and summers in the mountains, it's perfect for early morning and evening and is one of those pieces you never leave home without. It's the most versatile jacket I own, hands down. I'd highly recommend it to anyone. Would have gone with all five stars if it wasn't for the tighter fit.

5 5


  • Familiarity: I've used it several times
  • Fit: True to size
  • Height: 5' 10"
    Weight: 145 lbs
    Size Purchased: S

Love the feel, fit, lightness, warmth, wind resistance, and look. For my build a bit more armpit room would be nice.

5 5

More perfection out of Patagonia

  • Familiarity: I've used it several times
  • Fit: True to size

I've been wanting a Nano Puff jacket for years, and I finally received one from the Mrs. this Spring. I've worn it at every opportunity since then, and I'm super impressed. The jacket is lightweight, warm, and breathes well. It's comfortable to the point where it's easy to forget that you have it on, and it stuffs into it's own pocket for when you feel like taking it off.

5 5

Light and comfortable.

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: True to size
  • Height: 6'
    Weight: 220 lbs
    Size Purchased: xl

The jacket fits perfectly, it's not slim fit but also not too large. The sleeves run long, but i think that's by design, to accommodate more sporting actions (rock climbing like). Very light, not very much padding, just enough to wear it with layers, under or over. Good for city walks, elegant and practical, very versatile. Can't comment on its thermal properties, the weather is too warm now to wear anything but a tshirt.
Cons: overpriced, imho, but i bought it when it was on sale.

5 5

True to sizing

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Height: 6' 1"
    Weight: 160 lbs
    Size Purchased: Medium

Perhaps not as slim as I would expect from some other patagonia jackets but this makes it ideal for layering. Very nice jacket that packs down into the left inner breast pocket. Incredibly light and I like the dark grey color.

What temperature range do you think this jacket works best in? Also, can this jacket zip into an outer shell?

Best Answer Responded on


I am going on my second year using this jacket. The temperature rating is up to you as that really depends on what you are doing and your other layering. I have used this as everything from a casual jacket in 40-50 degree weather to a layering piece in sub-zero temps, while alpine climbing and backcountry skiing. This does not zip into an outer shell, but is very trim so you would have no problem fitting that under a shell. I have been nothing but please with this jacket so far. If you have any other questions or want to get an order set up, I would be more than happy to help!
Contact me at the info below

Dan Gates
Expert Gearhead
Office: 800-409-4502 ext. 4491

I am 6 foot and 160 pounds. I am debating whether or not I should get the medium or large. I don't want to be swimming in it, but I want to make sure it's long enough for my waist. What size would be best for me.

Responded on

I'd try a medium first if I were you. You're right on the cusp of needing a large for sure, but depending on torso length medium could fit just right if you're looking for a little more of a trim fit.

4 5

Light and Versatile

  • Familiarity: I've used it several times
  • Fit: True to size

This is a great jacket for when you're worried about a down jacket getting wet and losing insulating power. It looks great, and is so light that I forget I'm wearing it sometimes.
It does fit a little boxier than it looks in the photo, the sides go closer to straight down than the taper that you can see.

Unanswered Question

Can you please tell me the back length and sleeve length of a large vs an extra large? Thanks.

3 5

Arm length too long

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

Jacked feels boxy. Fit at body but too long for arms. Did not have similar issue with my down jacket. Returning it.

5 5

Nano puff = best jacket ever

  • Familiarity: I've put it through the wringer
  • Fit: True to size

Living in Northwestern Ontario and experiencing wild weather swings I have found this jacket to be extremely versatile. With nothing more than a tshirt or performance style undershirt I've worn this jacket out in conditions to -30 C and been perfectly comfortable. Incredibly lightweight, superb all around jacket that won't disappoint, can't wait to get my next one. I'm 6', 190 and broad in the shoulders and the Large is perfect, more of an athletic fit than not

5 5

On a scale of 1 to 10, this gets a 1,000

[review of both Men's and Women's nano-puff]. I'd pay double for this jacket. I bought this for my husband for Christmas last year. He wears it anytime it's below 50. He wears it under his ski jacket to keep toasty. He wears this cool summer nights. He wears it CONSTANTLY. I was so jealous of his jacket that this Christmas, I demanded the womens nano-puff. I wear it ALWAYS. I already had their down sweater. They are two completely different and both totally awesome coats but if I had to get just one, it would be the nano-puff no contest. The fit is flawless. It looks sexy on both men and women. Really flattering, nice enough to wear out to a more formal event as a coat (not too formal) and light as a feather. This is perfect in your pack on a day when the weather calls for -2 Lo and 36 High and you're just not sure? Throw this in your pack (or if you're like many embarassing ski dads, mine included, shove it down one of your jacket sleeves until you want to put it on...) Fits true to size, comfortable enough to sleep, ski, date and live in, easy to wash, warm as all heck. Patagonia nailed it with this one. Can I really only give it 5 stars?

Unanswered Question

bought a medium and its good everywhere except the lenght, was wondering the difference between the large and medium if its to much, im 5'10 and the medium barely is on my waist.

Just wondering if a large in this brand would be comparable to TNF or Columbia

Responded on

Fit here should be very similar to regular fit jackets from other brands.

3 5

wanted to like it

  • Familiarity: I returned this product before using it
  • Fit: True to size

weird, boxy fit. the size M sleeves were too short, and I was swimming in the L. cool colors and i like the material, but just didn't work out

In the picture the black and gray jackets look to be more form fitting vs the pictures of the other colors. Is this the case?

Responded on

Fit is exactly the same across all colors. Looks like on the grey and black they were put on body forms and then pinned back for some reason, definitely not the best representation of the overall fit.

Responded on

I agree with Ty. I have this jacket (its fantastic by the way) and it fits like a normal jacket would fit. Enough room to wear a t shirt, and vest underneath. The arms are a little longer (this is good for movement) and they are not bulky.

What is center back length of a medium?

When will you have Malachite Green in Large back in stock? I've been waiting to order one!

Responded on

Callaway J.,

We have a big order of Malachite Green in size large on the way. They should be available for purchase early-mid December.