Patio furniture cushions need to be both water and UV resistant if they are to last more than one season. They can be stored between seasons or even between uses. One of the nice things about a lot of modern patio furniture is that it provides weather-resistant storage. The cushions can be made from a variety of materials, but water-resistant manmade fabrics are the most common. The pillows are often made from the same stuff as yoga mats or camping mats. This provides both comfort and minimizes the effect of soaked cushions.