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The Best Insulation on Earth

The Best Insulation on Earth
Marmot Featherless is engineered with 3M Thinsulate™ Featherless Insulation. A loose-fill insulation scientifically designed to replace natural down.

  • The first synthetic insulation with the warmth of 700 fill power down
  • Performs just like down when dry, better than down when wet
  • Marmot’s Featherless is soft, supple and feels just like real down
  • BlueSign® approved and recommended by ducks and geese everywhere

Featherless Down 

Featherless Down 

  • Warm as 700 Fill Down – After 2 years of development, the next generation of synthetic insulation has arrived. It’s scientifically engineered with 3M Thinsulate to replace natural down. 
  • Stay Warm When Wet – While traditional down loses warmth when wet, Featherless keeps performing – so you’ll never think twice about the weather. 
  • Ultra-Light Compressible & Sustainable – The Featherless Jacket packs tight and travels light, it’s sustainably-produced materials are bluesign approved