Organic non-chemically added environmentally friendly and healthy DuPont Sorona Plant Fiber. The lower part of the pillow is filled with Charcoal Polymer Hose. This material is soft and has anti-flat head properties. The dry-cool technology never lets your head to be hot. The high quality material is soft and clean, specially for the sensitive skin. We recommend hand-wash with warm water not more than 40 degrees Celsius. With Neutral detergent. If machine wash, please use wash bag. Specifications Product Dimensions(cm) : 37x60x10 Product Weight(kg) : 1.3 Packing Weight(kg) : 1.4 Inner Material : Bamboo Charcoal Fiber/EPE Outer Material : Cotton/Polyester/Tencel