Any size or shape and choice of fabric, or elect to have a cushion made in the fabric pictured. Odd shapes and bay window seats are no problem! You have the choice of three or four inch thick luxe foam, professionally cut to your precise measurements. Dry fast foam option for outdoors. The cover has a zipper closure on the back and is washable provided you choose machine washable fabric, which is recommended. If you do not need the foam and just need a cover, please contact me for pricing as I'd love to help. Return customers needing a second or third or tenth cover for whatever reason, such as remodel, holidays, changing decor, etc. will receive exclusive discounts on additional covers. When requesting a custom order, please send me the measurements you would like AND your zip code so that I can give you a price as soon as possible. Don't forget to list thickness as a measurement. The most common is 3".