Our seat cushion cover is made of breathable, moisture-wicking, machine washable fabric for superior comfort and durability. The rubber covered base ensures the seat stays in place without shifting or sliding. Never sit uncomfortably again: use it as a car seat cushion for driving, office chair cushion, laboratory seat cushion, wheelchair cushion, airplane seat cushion, tailbone pain relief seat cushion, chair cushion for back pain or sciatica pain relief pillow. It’s a great travel companion – sit comfortably wherever you go! 7 functional zones: A – Leg support zone – Promotes blood circulation in sedentary legs. B – Pelvic Pressure Relief Zone – Releases pressure to support the pelvis. C – Hip Shaping Zone – Full wrap to reshape the buttocks. D – Central ventilation Improved breathabilit.