Patagonia Men's Nano Puff Pants


Packable, breathable, low-bulk insulated pants for cool conditions, ideal for layering under rain pants or bibs. The Nano Puff® Pants are so comfortable and warm, even when wet, that you’ll still be wearing them long after you’re off the water. Starting in 2020, we are transitioning our Nano Puff styles to PrimaLoft’s innovative 100% postconsumer recycled polyester insulation made with P.U.R.E.™ (Produced Using Reduced Emissions) technology, which provides excellent warmth for its weight, stays warm when wet and reduces carbon emissions as compared to conventional production methods. Fair Trade Certified™ sewn.


  • Fabric Details

    100% recycled polyester shell has a DWR (durable water repellent) finish
  • Comfortable Design

    Elastic-back waistband for comfort and fit
  • Pocket Details

    Two front slash pockets
  • Construction Details

    Button front and zippered fly
  • Security Pocket

    Reinforced seat with zippered security pocket
  • Fair Trade Certified™ Sewn

    Fair Trade Certified™ sewn
  • Country of Origin

    Made in Vietnam.
  • Weight

    332 g (11.7 oz)


  • Shell: 1.4-oz 20-denier 100% recycled polyester ripstop with a DWR (durable water repellent) finish
  • Lining: 1.3-oz 22-denier 100% recycled polyester with a PFC-free DWR finish (durable water-repellent chemistry that does not contain perfluorinated chemistry)
  • Insulation: 60-g PrimaLoft® Gold Insulation Eco 55-100% postconsumer recycled polyester; styles made for 2020 and beyond are produced with P.U.R.E.™ (Produced Using Reduced Emissions) technology
  • Fabric is certified as bluesign® approved
  • Fair Trade Certified™ sewn
  • Tags: Apparel FP Insulating Synthetic Technical Pants