Nano is short for nanotechnology, which essentially means really miniscule stuff and / or the manipulation of individual atoms and molecules, which is way beyond our comprehension. Patagonia have utilised a highly compressible, low bulk and hydrophobic PrimaLoft® Gold Insulation Eco though, in order to make the Nano Puff Hoody an extremely lightweight and slim piece, ideal for layering with excellent heat retaining properties. Packs into the internal pocket, making it an ideal travel piece which will come in useful year-round. 

• 100% recycled ripstop polyester outer 
  
• 60g PrimaLoft® Gold Insulation Eco (55% post-consumer recycled content)
  
• Low-profile hood - under helmet design 
  
• Brick quilting pattern with durable abrasion resistant thread 
  
• Front zip has wicking interior storm flap and zip garage at chin
  
• Two zipped hand warmer pockets 
  
• Zipped internal pocket doubles as stuff sack with carabiner loop
  
• Drawcord adjustable drop-tail hem  
  
• Fair Trade Certified Sewn™ 
  
• Packable 
• Weight: 363g
  
• Regular fit, take your usual size