Cushions the main pressure points by perfectly moulding to the contours of your legs and bottom, gives you the support and relief you pain from long time sitting. The cushion with hollow design breathes well for long term comfort. With memory foam core, soft and comfortable, breathable fabric, wrap-around zipper, easy to remove and wash. Suitable for computer chair. Size chart: 460 x 390 x 80mm/18.11 x 15.35 x 3.15.