Wave Belt - Pro Hydro-Fit 693-328 693-328 The WAVE Belt PRO is a thing of beauty. Engineered using the latest techniques in foam fabrication and ergonomic design, this buoyancy belt is a work of art. Designed for a more challenging deep water workout, the WAVE Belt PRO is less buoyant than the WAVE Belt, yet no less comfortable or form-fitting.Add the Extra Buoyancy Module for more support in the water. Out of the water, the WAVE Belt PRO dries fast and folds easily for convenient travel.The contour shape and overlapping design accommodates all waist sizes from very lean to extra large. The WAVE Belt PRO includes an Owner's Manual with illustrated exercises.