• FABRICS Fabrics for spring and summer include cotton and chintz. Denim is also strong and exemplifies the romantic theme with touches of lace. There's also the strong look of chambray. At Corporation Cortina in West Bloomfield there are many denim and chambray outfits. In addition to the romantic theme, owner Diane Dickinson notes the popular western influence with fringe. "Rayon is very big," adds Ray Epstein, owner of Ray & Ida. Epstein mentions that years ago rayon was considered cheap, but today it's coming from Europe with elegant styling. Linda Dresner has many crepe de chine outfits. "It's very stylish and very sexy," says Dresner. At Ray & Ida and at Corporation Cortina, owners mentioned the versatility of washable silk. "It's great for traveling," says Dickinson of Corporation Cortina. Summer suedes and leathers