RK3 Fins

RK3 Fins


Designed in collaboration with the US military and renowned for outstanding performance and reliability, the Apeks RK3 is a rugged thermoplastic rubber fin featuring an over-sized foot pocket to accommodate drysuit boots and a spring strap for easy donning and doffing. The RK3 is available in three sizes: Medium, Large and Super.

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  • 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 manoeuvrability.

  • 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.

  • Sizes: Medium, Regular and Super (Pink in Medium only)

  • Colors: Black, White, Grey, Yellow, Pink and Orange