The AquaJogger fitness belts are a great way to tone abdominal muscles and straighten posture. These easy to use belts are available in multiple sizes for all body shapes and weights. Not only does the AquaJogger belt strengthen abdominal muscles, it can also be used to strengthen back muscles as well. Closed cell foam on the belt does not absorb water, dries quickly, and resists chlorine damage. These belts are must have for anyone that would like to add a challenge to their normal aquatic workout.