Sexy, elegant and effortless, sheath wedding dress shapes create an understated silhouette. This style is often made from light and flowing fabrics, such as crepe, chiffon or tulle. Some designs fit like a slip dress, closely tracing your body’s outline. Others drape a little straighter, like a column. Both are a good choice for petite brides or those wary of being overwhelmed by lots of fabric, as the long, straight lines have a lengthening effect.