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Description
Description
The Apeks RK3 HD is a top-of-the-line fin designed for the serious diver. Made from high-density material, this fin is stiffer and offers negative buoyancy, making it perfect for wetsuit diving. The rugged thermoplastic rubber construction ensures durability, while the over-sized foot pocket easily accommodates drysuit boots. With a spring strap for quick and easy donning and doffing, the Apeks RK3 HD is a versatile fin suitable for a variety of environments. Whether you are diving in warm waters with wetsuit boots or navigating pebbled beaches in a dry suit with rigid dry boots, this fin has you covered. Available in four sizes - Small, Medium, Large, and Super - the RK3 HD is a must-have for any diver looking for superior performance and comfort. Invest in the best gear for your underwater adventures with the Apeks RK3 HD fin.
Features
Features
- Based on one of the first vented rubber fins sold in North America and popular among military and professional divers.
- 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.
- Vented blade design reduces resistance on the upstroke and enhances thrust on the downstroke.
- The vents also eliminate vortexes that can occur along the back of the blade much in the same way split fins eliminate the vortex.
- The blade material designed to hold up in the toughest environments, temperatures and abuse.
- Two large grommet holes designed to fit most karabiners for easy storage of the fins while accessing the dive site.
- Spring straps as standard.
- Custom designed buckle holds spring straps in optimum position.
- Simple push pin design allows simple replacement of springs if necessary.
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Why do military and public safety divers use Apeks RK3 fins?
The RK3 has been standard issue for military, special ops, coast guard, and public safety teams for decades: a rugged thermoplastic rubber fin with a short, wide vented blade that delivers power in tight spaces and holds up to abuse that destroys composite fins. Stainless spring straps are standard, with grommet holes for clipping the fins off when climbing a ladder.
Apeks RK3 vs RK3 HD: what is the difference?
The HD is molded from a higher-density compound, which makes it stiffer and negatively buoyant — Apeks positions it as ideal for wetsuit diving, where sinking fins help keep your legs in trim. The standard RK3 is the softer-flexing original that most drysuit and all-around divers choose. Same blade shape, same spring straps, same near-indestructible build.
What size Apeks RK3 fins should I get?
Apeks deliberately publishes no shoe-size chart for the RK3 — they consider it misleading, because the right size depends on your footwear. The oversized foot pocket comes in Small, Medium, Large, and Super, and is designed to swallow anything from wetsuit boots to rigid drysuit boots. Tell us your shoe size and exactly what boots you dive, and we will put you in the right pocket.
