• M'S NANO PUFF PANTS, Forge Grey (FGE)
  • M's Nano Puff™ Pants,
  • M's Nano Puff™ Pants,

Patagonia Men's Nano Puff™ Pants

82140 #82140
  • Forge Grey
    $179.00 FGE
    Forge Grey (FGE)
Forge Grey (FGE)
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M's Nano Puff™ Pants,
M's Nano Puff™ Pants,
Additional Information

Packable, breathable, low-bulk insulated pants for layering under waders in cold conditions; they’re so comfortable and warm, even when wet, that you’ll still be wearing them long after your waders are hung up to dry.

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Swinging for late B-runs on the Clearwater, thoughts turn to turkey dinners and ice forms in your guides. Fortunately, you don’t have to give in to the elements. Our Nano Puff™ Pants are made with recycled, low-bulk 60-g PrimaLoft® Gold Insulation Eco for a wading experience described by one of our field testers as “floating in toasty, puffy warmth.” Perhaps even more important, the Nano Puffs maintain warmth even when wet—a critical factor in any under-wader insulation. Thanks to the lightweight 100% polyester shell fabric with a DWR (durable water repellent) finish, and the reinforced seat, zip fly and handy pockets, they work just as well outside of waders as in. Which means, if you’re like us, you’ll keep wearing them in camp or around town long after you’ve hung your waders up to dry.
  • 100% polyester shell fabric has a DWR (durable water repellent) finish
  • Elastic back for comfort and fit
  • Two front slash pockets
  • Button front and zippered fly
  • Reinforced seat with zippered security pocket
  • 332 g (11.7 oz)
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Size & Fit
Model is 6'0" and wearing a size Medium
Regular Fit Size Chart

Shell: 1.4-oz 100% polyester with a DWR (durable water repellent) finish.

Seat reinforcement: 3.4-oz 100% nylon taslan with a DWR finish.

Insulation: 60-g PrimaLoft® Gold Insulation Eco 100% polyester (55% post-consumer recycled content).

Fabric is certified as bluesign® approved

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bluesign® Approved Fabric

Patagonia has worked with bluesign technologies since 2000 to evaluate and reduce resource consumption in our materials supply chain, and to assist us with managing the chemicals, dyes and finishes used in the process. bluesign technologies, based in Switzerland, works at each step in the textile supply chain to approve chemicals, processes, materials, and products that are safe for the environment, safe for workers, and safe for the end customers.

In 2007, Patagonia became the first brand to officially join the network of bluesign® system partners.

Any fabric you see that’s bluesign® approved offers the highest level of consumer safety by employing methods and materials in their manufacture that conserve resources and minimize impacts on people and the environment.

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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 Pants is rated 4.3 out of 5 by 25.
Rated 5 out of 5 by from Lucky Hubby! Need some warmth for women too! I just ordered these for my husband.... I have a pair of Montbell down pants that have worn out. I was so excited to see these nanopuff pants and was ready to order some as a replacement for my worn out pants BUT only for my husband (sad face). If you made them for women, I would definitely buy a pair! I wear them in the winter over my scrubs while going to/from work, hiking, to yoga class, camping, under my ski bibs and they are amazing. I'd love to see a few color options and a woman's fit because I'll definitely buy some. I think Patagonia makes quality products but I'd love to see some options for this product. ps. One of your employees suggested writing a review to provide this feedback...I'll be not so patiently waiting!
Date published: 2017-12-04
Rated 5 out of 5 by from Winter Wading Must These pants are a must have in your arsenal for winter wading. I was out the other day the air temp was 29° degrees in the water temp was 36°.I had my R1 pants as a base over these and was toasty all day. The features are great they have a back zip pocket for your wallet (Feature the R1 pants lack).The elastic waist band is a plus giving a little extra room to tuck Layers in so they don’t ride up when you’re wading. I had small pin hole leak in my right leg nothing major the DWR coating prevented by base layers from getting wet.The fact they stay warm when wet is a life saver in winter conditions. If your a winter steelheader or just chasing fish cold conditions these pants are a must have !
Date published: 2017-12-04
Rated 2 out of 5 by from Really great for short people If these actually fit me I would rate them 5 stars. I am 6' tall with a 30 inch waist and all of my Patagonia pants, baselayers, and boxers have always been size S and fit perfectly. These seem to fit well at first but due to lack of stretch, when I sit down or raise my legs to go up any steps or steep incline, they rise up more than 6 inches. Seriously, more than 6 inches! I have no idea why these are effectively so much shorter than any other pants I have ever owned, and I especially cannot figure out why they testers did not view this as a huge problem since these are designed for warmth. If you are 5' 6" or less, or wear a L or XL, then these will most likely fit perfectly and be amazing pants, but for me they just don't work. One more gripe is that the back zippered pocket entry is quite small and my hand, (glove size L/XL) does not fit. I would love to see these re-worked with enough stretch to combat the rise and some zippers added to the side pockets for security when using them as an outer layer. Some cuffs at the bottom might be nice too! I really hope that a future version will fit me because these pants seem great.
Date published: 2017-10-08
Rated 4 out of 5 by from Would love to see side zips! These pants would be awesome if they had side zippers that ran along the entire pantleg - this way they could be put on without taking off ski boots and crampons. Will definitely purchase a pair when this happens!!
Date published: 2017-09-27
Rated 5 out of 5 by from The bomb These pants are so comfy. Weather at home watching TV or out at the bars in the winter or in my waders in the winter and spring. They are designed like a normal pare of pants and I would advise any buyer to wear them like one. You will always be comfortable they are like a fancy pair of sweat pants.
Date published: 2017-06-19
Rated 1 out of 5 by from Too short!! I've had them for a few months now. I'm 5'11" and weight 165. The small fits my waist perfectly 31 inch waist. The length is too short though. When I sit down they turn into capris and I have seven inches of exposed leg..... brrrrr!
Date published: 2017-05-15
Rated 5 out of 5 by from Great design. Wore them and stood in thigh deep 40 degree water for over three hours. Total comfort. After fishing can slip off waders and go to the store without looking like an idiot.
Date published: 2017-03-26
Rated 5 out of 5 by from Comfy & Warm You feel like you are wearing your PJ's as your are dressed for another cold weather adventure. Great for lounging around after playing out doors at minus 30.
Date published: 2017-02-19
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