Rumpl’s Nanoloft filling is a synthetic alternative to down and is a breakthrough in insulation technology. Unlike traditional synthetic fills, Rumpl's 100% post-consumer recycled NanoLoft® insulation is made up of tiny circular clusters of fiber that mimic the properties of down clusters. This technology traps warmth inside small pockets of air to efficiently preserve heat, regardless of conditions. Features and Specifications 100% post-consumer recycled polyester shell and insulation NanoLoft® insulation technology that mimics down DWR finish for stain and water resistance Corner loops Machine washable Water-resistant stuff sack included Fabric: 100% recycled 30D ripstop polyester fabric  Insulation: Nanometer high-elastic cloth with soft nap (synthetic down); 200 gsm Dimensions: 203 x 213 cm Weight: 1500 grams Rumpl Nanoloft Puffy 2 Person Packable Portable Blanket - Deepwater