FeaturesProvides relief of pressure on CoccyxHigh density foam with memory foam topperHelps promote correct postureRemovable cover for washingCan be used in the home, work or carThe black cotton twill covered Aidapt Coccyx Wedge Cushion has been designed to improve your posture and to offer relief to those who suffer from a tender coccyx. The 11 deg. angle is accepted as producing the optimum sitting position and correct posture. The cut-out at the back of the cushion allows the coccyx to be suspended without pressure. The construction of the cushion includes both standard foam and a generous 2 cm layer of high-density memory foam for improved comfort. The Coccyx Wedge Cushion can also be used in a car seat as an infill.