defactoflex wedge seat cushion for car and truck seat cushion - high density memory foam - coccyx and sciatica pillow - slimmer design defactoflex <b>defactoflex memory foam wedge seat cushion – car and truck seat cushion</b><br><br>- defactoflex seat cushion provides full relax for your tailbone and supports your back during long driving and sitting hours with its ergonomic design and high quality, no-odor memory foam. the surface design distributes body pressure, relieves stress, improves comfort, reduces back pain and provides relief for sciatica.<br><br>- defactoflex seat cushion is a great solution for car seat, truck seat, home & office chair, wheelchair, and any traditional chair that you want to convert into a relaxing and healthy sitting experience. <br><br>- defactoflex 100% high density memory foam allows you to feel comfort in every use, keeps its density and shape and never goes flat. this wedge cushion has a slimmer design than the conventional seat cushions in order to reduce pressure on your leg, butt and back during driving and sitting.<br><br>- 3d-mesh fabric allows air circulation during long sitting hours. this 3d-mesh fabric cover is removable with its invisible zipper and machine washable. its adjustable strap and anti-slip bottom keep your wedge seat cushion on the seat at the exact desirable position.