I don’t understand some of the negative reviews. This little cushion fits me perfectly and I have it everywhere. It’s a dark gray so a feel comfortable taking it out of the house for plane, car trips, and visits to restaurants. It doesn’t show dirt and the cover is easily cleaned.It’s extremely comfortable and protects my coccyx from pain. I have an arthritic back and poly peripheral neuropathy. I’m basically a mess when it comes to sitting, walking, or standing too long. This cushion is a savior for attending concerts and movies.This cushion lasts forever. I have three because I don’t like to carry it from room to room and I want to have a special one to take outside the house to events. I also have three made by the same manufacturer, but in another size for my couches or chairs.No one can give me a new back, but the Tush Cush gives me back the joy of living.