Not only is this sooooo hard, but the back is much thinner than the front. This makes you sit way down in the back buttocks area of the seat. VERY difficult on your back and tail bone, especially if you have sciatica. Also the cover is a canvas material and is very hot to sit on for any length of time. I do not know where they can advertise this as "soft combi cushion". This is not at all what the picture represents. I do not recommend this pillow for anyone who is looking for a comfortable cushion to sit on!