JET FIN is still a favorite of professional divers worldwide. SCUBAPRO JET FIN is known for. This special fin design set the standard for power and durability when first introduced 50 years ago. Durable rubber construction and physical shape are found in dive boats, laboratory vessels and diving locations around the world. Most people who have a C card know "JET FIN". The JET FIN features a proven vented design that reduces drag in the upstroke and improves downstroke thrust, providing the power and mobility for the job at hand. Thats why todays technology divers, deep divers, military divers, commercial divers, diving instructors, and recreational divers will strap your favorite pair of JET FINs before diving. Obviously, when you are diving with JET FIN, you are diving in a good company. There are many imitations, but only one jet fin. JET FINS can be used in a range of colors with an adjustable rubber heel strap or a durable stainless steel spring strap that will last forever, making it easy to put on and take off. Technical Information Rubber construction is known for durability and extends its life. Proven vented design reduces drag during upstroke and increases downstroke thrust.