Speedo Aqua Fitness Jog Belt - Swim Accessory: Perfect for a low impact pool workout, the Aqua Fitness Jog Belt from Speedo is made of soft, flexible foam and will help tone abdominal muscles while working out your legs. Features: • Soft flexible foam • Helps tone abdominal muscles while working out legs • Provides support and stability during deep water fitness exercises • Increases arm strength while reducing shoulder stress • Webbed belt adjustable up to size 48" waist with quick release clip • Available in two sizes