BackJoy SitSmart Posture Plus automatically positions your body in correct posture for all-day sitting comfort. It works in any type of seat, from office chair to car seats, even hard bleachers. The patented design works by tilting your hips upright and comfortably floating your spine over the seat. The SitSmart Posture Plus style features a waterproof EVA foam covering that comes in a variety of fun colour options. Hardy and washable. Suitable for the Home , in your Car or Outdoors ! Start sitting smarter today.