A Feeling That Lasts.  DOW XLA™ is a revolutionary stretch fiber that redefines the clothes we wear to enhance the way they move, look, feel and withstand the rigors of modern living. Fabrics enhanced with XLA fiber wrap the body in gentle support with a soft, non-snap stretch that endures multiple washings and dry cleanings while maintaining garment shape. Consumers have confidence that they will look and feel great, wear after wear.