Summer Cooling Gel Cushion Seat is Seat Cushion with Breathable Honeycomb Design. Special flex support cushion supports your backside and spine so well, you can sit on an egg without breaking it. Casta Summer Cooling Gel Cushion Seat is Strong and durable. Casta Summer Cooling Gel Cushion Seat retains its shape, making it a great back pain seat and orthopedic seat. Casta Summer Cooling Gel Cushion Seat Fits most chairs for deep seat pressure relief