Zone 3 Neoprene Shorts Originals 5/3mm Novice and intermediate swimmers have been using the Zone 3 bouynacy short since 2008 and it has helped thousands of them.  For correct technique and efficency it is inportant that the hips and legs are close to the surface of teh water.  This allows longer glides and improved kick.  Pop these shorts on and see faster laps and less fatigue in your shoulders. - Additional buoyancy equivalent to a pull-buoy - Can be used for drills to improve technique - 5mm panels for stabilising the core and raising the legs