This unique cushion was created with your comfort and well-being in mind. The SupporTech™ features the patented PostureLITE™ seating system. An ingenious valve system regulates air flow in and out of a specialized chamber in the seat cushion which provides ergonomic, customized body-conforming support. The cushion is topped with a thin layer of memory foam for enhanced, personalized comfort. This patented technology provides proper pelvic support which promotes ergonomically correct posture and helps reduce the risk of severe lower back pain.