At the very basic level, wheelchair cushions are designed to provide additional comfort, especially if you intend to use your wheelchair for extended periods. The more advanced cushions can help prevent pressure sores. Some models of wheelchair come complete with a cushion, although this is usually just a basic cushion.
Almost all modern wheelchairs are now designed so that cushions are interchangeable, offering the user the ability to decide which cushion best suits their needs. Wheelchair cushions are made from a variety of materials. Basic foam cushions are suitable for low risk use. Medium risk users have the option of foam, gel or memory foam cushions. High risk users should consider either gel or air based cushions. Medium and high risk users are advised to consult with a therapist or your GP on your specific requirements before purchasing.