Used, worn a handful of times Recycled polyester fill creates a cozy puffy feel FirmaKnit™ linings made with 99% recycled PET polyester offer strong and socklike comfort Pull loop at ankle aids in easy on/off Ultra-cushioned yet supportive TrailBed™ drop-in midsoles with removable insoles Made with 25% USDA-certified bio-based Susterra® compound, TrailBed insoles use INSITE® Contoura® technology created with podiatrists to ensure support and comfort 20% recycled rubber TerraGrip™ tread provides anti-slip grip—ideal for slippers that feel more at home outside than inside