Zoggs fins zoggs swim fin energy turquoise build a stronger kick and power through the pool with the zoggs swim fin energy. The new zoggs swim fin energy has been created to help you develop a stronger kick for increased propulsion through the water. The advanced design encourages correct technique whilst simultaneously enhancing muscle development. A closed pocket design provides a secure and comfortable fit, and the fin is made from high grade polypropylene for lasting durability. Stronger kick. Better technique. More propulsion. Advanced training fin closed pocket fit technique focused muscle development high grade polypropylene 3 key features propulsion through better kicking the swim fin energy is specifically designed to develop a stronger, more effective kick. Greater propulsion through the water is the direct result, helping you move faster and more efficiently in every session. Whether you are drilling or doing full-length sets, the fin translates effort into meaningful speed gains. Technique and muscle development together the advanced design encourages correct kicking technique whilst simultaneously enhancing muscle development. Rather than simply adding speed, the fin trains your body to move with better form. Over time this builds the strength and motor patterns needed for a more powerful freestyle or backstroke kick. Secure and comfortable closed pocket fit the closed pocket design keeps the fin firmly in place throughout your training, eliminating the distr...