Our product is made of 100% viscose. Thanks to its fully orthopedic design, it provides extra support in any sitting position and provides a comfortable and relaxed sitting. It has a zippered and easily removable cover that is washable. It is designed with an empty middle. They were produced one by one in high-pressure machines in molds drawn with 3D technology in a computer environment. The cover is made of breathable fabric. This allows air circulation inside. Provides comfort to those who sit for long periods of time. It is effective in hip heaviness, decubitus ulcers and coccyx degenerations. It is helpful for those who suffer from hemorrhoids or who have difficulty sitting due to various accidents and illnesses. It is recommended for use by every healthy person, except for the cause of discomfort. Our pillows are covered by a 2-year warranty. The covers of our products can be washed (30°C), but never allow the viscoelastic material inside to come into contact with water. Detail: Material: 100% Viscose Measures 44x14x8 cm Color Black