Provides stable buoyancy of the lower body, which helps to concentrate on practicing the correct movements of the freestyle or reclining arm, and further adjusts the incorrect twisting of the upper body when the arm slides, and feels that the body remains straight and level with minimal water resistance during exercise.
● Provide good buoyancy for both feet
● Conduct concentrated exercises for the arms
● Ergonomic design
● The legs are well clamped and not easy to slide