The Freeflow Pullbuoy from Arena is a swim training tool that has been designed to be worn between your thighs, immobilising your legs so that you can work on your body position and improve upper body strength and technique. This Arena pull buoy is light weight and compact so easy to carry to and from training sessions and its hydrodynamic contour improves water flow and reduces thigh friction. Features Benefits: Improves Body Position: The buoyancy of the pull buoy brings your hips higher up in the water and teaches your body to swim more horizontally and streamlined, which will increase your efficiency, speed and endurance. Maintains balance so that you can focus on your arm stroke. Improves breathing technique: Helps you to develop a bilateral breathing rhythm as you swim more relaxed and easily when you are not kicking. Builds upper body strength: As your legs are not being used, you isolate your upper body muscles and, over time, will increase strength in your upper body. You can use a pull buoy in conjunction with hand paddles for a more challenging work out for your arms.