Design and Details Updated design with a multistage zipper system allows for an even wider temperature range and finetuned heat regulation 100% post-consumer recycled content, engineered to deliver maximum warmth retention and water resistance with less weight than conventional synthetic insulation Adds room at the elbows and knees for versatile side-sleeping comfort 30D100% Recycled npslop polyester and 20D100% recycled taffeta polyester otters a buttery-soft ultra-plush sleep experience. Shell: 100% recycled polyester, bluesign approved Lining: 100% recycled polyester Fill: Synthetic Primaloft RISE, 100% PCR