The main characteristics of this ergonomic lumbar support cushion are as follows: Soft: Innovative technology combined with highly elastic fabric provides a soft sitting experience. Durable and Shape-Retaining: Molded in one piece through high-temperature hot pressing, this cushion is both durable and shape-retaining. Refreshing: Made with breathable yoga fabric, it allows water vapor to escape, keeping it refreshing. Easy to Clean: If the soft cushion part becomes dirty, it can be easily cleaned with detergent.