Well-known to textile aficionados, Perennials performance fabrics have distinctive style, quality, and luxury. Woven from 100% solution-dyed acrylic, they resist UV radiation, mold, mildew, and staining, for furniture that will last season after season, indoors or out. (They’re not beloved by designers and home enthusiasts for nothing.) Here, a thicker weave provides some subtle texture and a look that’s both casual and chic. Stripes add a bit of fun.