A dress is a one piece garment consisting of a skirt with an attached bodice. It consists of a top piece that covers the torso and hangs down over the legs. A dress can be any one-piece garment which goes below hips.
Synthetic fabrics are textiles made from man-made rather than natural fibers. Eg polyester, acrylic, nylon, rayon, acetate, spandex, latex, Orlon and Kevlar. Synthetic fabrics have many different qualities which are not achievable with natural fibers, eg synthetic fabric can provide waterproof fabrics and elastic fabrics for swimwear and underpants.