Warm, windproof, water-resistant‰ÛÓthe Nano Puffå¨ Jacket uses incredibly lightweight and highly compressible 60-g PrimaLoftå¨ Gold Insulation Eco (100% polyester that‰۪s at least 55% postconsumer recycled) wrapped in a 100% recycled polyester shell and lining. 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.‰ã¢ (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‰ã¢ sewn.