13cm high density 100% visco-elastic core It relieves neck pressure and allows us to stay longer in our optimal phase of rest It supports the weight of the head without generating muscle or cervical tension. Double-sided, summer (fresh and breathable 3D fabric) and winter Protective inner covers Strech polyester outer cover with zip Washable at 40º. Extra soft upper fabrics with natural Bamboo fiber High quality weight and silky feel Bamboo fiber has natural antibacterial and antifungal effects The natural bamboo fiber thermoregulates the temperature and humidity of the skin, keeping it hydrated and fresh. Quiet and breathable Prevents wrinkles on the face during sleep Avoid hyperpressure points that can affect hair and skin Anti-pilling treatment. Oekotex Class 1 Made in Spain.