Great for swim training, the Aqua Sphere Adults’ Zip VX Swim Training Fin features a soft rubber foot pocket for comfortable wear and a vortex channel in the fin blade to add thrust, increase efficiency and reduce ankle strain. The adjustable heel strap provides a secure fit.Features and BenefitsGreat for use during swim trainingVortex channel in the fin blade adds thrust, increases efficiency and reduces ankle strainSoft rubber foot pocket for comfortable wearAdjustable heel strap provides a secure fit








