The Apeks RK3 HD is the latest model in the RK3 range. It is made from a higher-density thermoplastic rubber than the standard RK3, which makes the fin stiffer and gives it negative buoyancy. Like the original, it has a short, wide vented blade, an oversized foot pocket for drysuit boots and spring straps as standard. This page offers the RK3 HD in orange and black; choose your color and size from the options on this page.

Key Features

• Higher-density compound for a stiffer blade with negative buoyancy
• Vented blade reduces resistance on the upstroke and enhances thrust on the downstroke
• Short, wide blade for strong forward thrust with great maneuverability
• Compact, ultra-rugged build designed to hold up to harsh environments, temperatures and abuse
• Spring straps and a custom buckle for easy use with cold hands or thick gloves; the springs replace with a simple push pin
• Two grommet holes fit most carabiners for easy carrying to the dive site

Sizing

• Apeks sizes the RK3 HD by foot pocket rather than shoe size, because wetsuit boots and rigid drysuit boots of the same shoe size fit differently
• Bring your boots and we can help you choose

Looking for a stiffer, negatively buoyant rubber fin? The RK3 HD is in stock at our Houston dive shop on Mercer St, where our staff can help you check the fit with your boots. We ship nationwide, and orders shipped outside Texas are not charged sales tax.