- Color: Black
- Brand: Apeks
- Material: Rubber
- Fit Type: Regular
- Compact, and ultra-rugged for use in harsh environments.
- Improved foot pocket with spring straps for ease of use with cold hands or thick gloves.
- The design has been the standard gear issue fin for military, special ops, coast guard and public safety divers for decades.
- Short wide blade provides maximum forward thrust while maintaining great maneuverability.





















BrianB –
I wear a size 12 shoe/bootie and the Large fin fits me perfectly. Easy fin to get into and out of from the water with the heel spring. D-ring holes for carabener-BCD clip, which I like. I bought both this fin and the SCUBAPRO Go Sport (size: Large) fin to compare and I personally felt that the Apeks was a more comfortable fin (out of the box). I especially like the ruggedness and durability of the RK3 design and again, the spring heel strap is REALLY nice. I’ve done 5 dives since purchase in Hawaii and I enjoy the overall feel of this RK3 fin. Plenty of power and compact design. It is a comfortable all around fin for my preference. If I had a complaint, it would be that it’s not the best looking fin, but it does the job well and is a durable fin that will last awhile and can be used for whatever I want to do.
Brandon J. Smith –
They are my favorite fins, and I repeatedly purchase them if I lose or break them. I have used Super-Nova, Jets, Frogs, and several other large blade-style fins. These work for me because they are easy to slip on and off. This makes for a smooth transition. They also help me move faster because I am a slow kick style swimmer. I have long legs, so I don’t use a rapid kick. Mine is more of a smooth, methodical kick and These fins complement my swimming style. They are similar to Rockets, but they have softer material.
Jos-Louis –
Delivered quick. My local dive shops didn’t have a large size in stock. Compared to my Cressi Frogs these are much more stiff and powerful. wearing a 3mm size 10 dive boot (my foot 10.5 us) a large fin is comfortable and secure.
william vaughn –
Powerful and comfortable.
reefball –
I have been diving with Scubapro Jets and Hollis F1s for the last 14 years as a Divemaster. I was looking for something with the same level of control and thrust, but lighter for travel. These are absolutely perfect. A few pounds lighter than the Jets, and the foot pocket is much more comfortable. These have become my new favorites.Sizing: I wear a 9.5–10 size shoe and the Large fit perfect over a 3 mm bootie. And would fit fine over a mm also
Jimmy P –
Good fins are critical to diving and the RK3 are great. Perfect balance of flex and stiffness, short enough you don’t notice them in a wreck, and the foot pocket fits bigger dive boots or a pair of chucks just fine.
Mo –
I bought them specifically for side mount and dry suit diving. I couldn’t be more pleased with their performance.
David –
Fantastic finning ability, perfect for technical diving! Frog kicks, reverse swimming and whatever else you need! Not a speed fin, but works perfectly for everything else