A designer who specializes in designing clothes that relate to active sports such as aerobics, exercising, cycling, yoga, horseback riding, jogging, skateboarding, tennis, swimming, and surfing. Activewear designers might also specialize in performance apparel for sports such as skiing, snowboarding, hiking, boating, and mountaineering.
Historical Dictionary of the Fashion Industry. Francesca Sterlacci and Joanne Arbuckle.