Thinner cushion, removable & washable cover, coccyx cutout, various sizes
The only real weakness I can see that this product may have is cushion collapse. I'm not in my wheelchair at home except to do my PT exercises or if I'm visiting someone else's home & I'm not comfortable sitting on their furniture. I'm not sure how long the foam would hold up under my weight if I used it for several hours every day. Maybe if the foam was a bit firmer?
Middle aged obese female with severely compromised lymphatic system. Legs swell severely making walking nearly impossible.