The Apeks RK3 Fins are a rugged, high-performance fin designed for divers who want strong propulsion, excellent control, and long-lasting durability. Originally developed for military and professional use, the RK3 features a compact, vented blade that delivers reliable power while reducing leg strain. With a tough rubber construction and spring straps for easy use, they are ideal for scuba, snorkelling, travel, and all-round diving conditions.