Nowadays, the natural evolution of all SUP fins has stood out for the materials used and for the performance. 3D Keeler goes a step further, creating a new concept of keel called Keeler. The 3D Keeler paddle surf fins are going to mark a turning point in the world of surfing, thanks to innovation and design. The world of surfing is going to experience a technological and nautical engineering evolution in all our fin designs. 3D Keeler applies the Bernoulli principle and the Ventury effect in all its designs, where fluid dynamics is calculated to exert a force of pressure and gravity, causing natural and dynamic acceleration. What we look for in a fin according to skill is speed, stability and maneuverability, 3D Keeler has managed to unify these three criteria, giving the surfer unparalleled sensations. The fixing systems are designed to cover 100% of the boards on the market, as well as the Us box and Sline In. Keeler will replace conventional fins, creating a new concept and a new world within all disciplines of surfing.