This cushion features a 16.6''x18.2''x4.3'' cutout for targeted pressure relief and posture support. It offers four-zone ergonomic support, including hip contour and lumbar support wings, to reduce discomfort. Made with cooling gel and high-density foam, this product ensures temperature regulation and steady support, featuring a non-slip bottom. Price drops from $19.99 to $14.99 using code "KESMSSDT". Free shipping with Prime.