bio-fin is made of our original material "Fusion Rubber" that is an original material we developed from researching of ideal blending of natural rubber with various other materials.
The blade splits must open and close smoothly to maximize the advantage of the Split Fins.
By adopting "Fusion Rubber," which is a unique blend of high-quality natural rubber, it is possible to mass produce the highest quality fins while achieving both high durability and flexibility.
In addition, most of the fins in recent years focus on molding efficiency and color development, and most of them are mainly made of plastic resin or urethane, but since we place the highest priority on fin performance, we are particular about to use natural rubber.