Introducing the Apeks RK3: a robust thermoplastic rubber fin specially designed to meet the demands of divers. It boasts an oversized foot pocket, making it a perfect fit for drysuit boots, and it’s equipped with a convenient spring strap for easy on-and-off use. The RK3 is available in four sizes: Small, Medium, Large, and Super. Instead of providing a shoe size range, we recognize that the environment in which you dive plays a crucial role in determining your ideal fin size. Consider whether you’ll be diving in warm waters with wetsuit boots or navigating pebbled beaches while wearing a drysuit with rigid dry boots. Even if both sets of footwear are a size 9, they will occupy different amounts of space in the RK3’s foot pocket. Choose the right size to match your specific diving conditions.