Pure Posture Seat Cushion - Avoid PainPure Posture is a supportive cushion that will help align your pelvis and spine as you sit on hard surfaces so you can avoid experiencing pain in any area of your core or lower body. This cushion will come in handy when you need to sit on hard kitchen or dining room chairs, outdoor bleachers, or church pews. It'll also help you out if you need to spend a long time driving in the car or sitting at an office desk.