Thick Design: Built for long sitting, this gel cushion has a thick gel core for added support. Listed size refers to the gel core only. Due to the soft gel and snug cover, the pad may measure slightly smaller with the cover on, without affecting comfort Patented Cooling Design: Patented pattern enhance breathability and heat dissipation, offering superior airflow. The advanced structure reduces sweating and prevents heat buildup, ensuring a cool and comfortable seating experience even during extended use Supportive: Made from high-elasticity gel, this seat cushion offers excellent softness and firm support. It helps alleviate discomfort by reducing pressure points, making extended sitting more comfortable Easy Care and Stability: The removable cover with a zipper allows for easy machine washing, keeping your chair pad effortlessly clean. Non-slip dots on the bottom ensure the cushion stays in place, offering a stable seating experience Versatile: Suitable for the office, home, travel, and car seats, this cushion is a thoughtful present for family and friends. Lightweight and portable, it offers comfort and support wherever you go, whether for work, study, or driving, or relaxation