Top Rated Gear

Apeks RK3 Fins Small Black

SKU: APXFRK3BKSM MFR: FA2480101S

Key Features

  • Experience powerful propulsion with these Apeks scuba diving fins, designed for efficiency.
  • Enjoy a secure and custom fit with the adjustable strap on these open heel fins.
  • These durable thermoplastic rubber fins are built to withstand rigorous scuba dives.
  • Vented blade design reduces strain, making these scuba fins ideal for long dives.
  • The comfortable foot pocket ensures a snug fit, enhancing your scuba diving experience.
  • Easy to use and adjust, these fins are perfect for both new and experienced scuba divers.
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1 Year

$17.99

2 Year

$29.99

3 Year

$39.99

Available to U.S. customers only.

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Q&A

Questions & Answers

LEAH S : Can you change the strap easily?darrick c : Hello Leah, you would need to remove that pin that attaches to the fin itself.
DAN M : Are these bouyant, neutral or sinkers in salt water ???JAMES W : Just a touch over neutral. The HD fins are negitive.
Patricia A : My size is at the top of the medium and bottom of the large size ranges. Is it better to buy smaller or larger?PATRICK K : I am a man with a size 11 shoe and I got the large. My advance dive instructor a few years back introduced me to these fins and his comment was they ran small. I would go to the larger size. I dive both warm and cold water and I can fit any size boot in mine comfortable. I would add I have two other sets of fins one of those pairs in a Scubapro Seawing Novas and these are my preferred fins. They are compact, easy to get on and off and provide plenty of power when diving in current. I recommend these fins.BRET B : I have a Size 10 foot I wear a large. My brother is a size 9 foot and my largest were too big for his 9 foot boot I’d get a medium if my boot was smaller than a Size 10. You could also find a boot that was thinner, that might help too
robert d : I'm a 8.5 mens size with booties what size should i buy?Mario C : if those boots are tropical soles (thin) the medium should work better,,, if thick more like sneakers soles the L should be better
Mary K : What's the length of the small (from toe to strap)?Mario C : + - 10 1/4 in

Reviews about this item

Review Summary

2023-06-12T05:50:06

Rated 5 out of 5

Nice fins

I lost one during my giant stride at the ocean. I was so lucky it's a positive fin and it was vertical position floating ?? and the dive master could catch it and I could dive. They are very good.

NANCY M.

2022-12-05T03:27:20

Rated 5 out of 5

Great fins

They are very durable and do what they are supposed to do.

Bernadette D.

2021-09-13T20:00:00

Rated 5 out of 5

Fucking incredible

They have changed my life! They?Äôre fucking amazing.

DavidE

2020-10-22T09:28:20

Rated 5 out of 5

Best of the best

Nothing beats the RK3 fin

JAMES W.

2020-09-29T18:11:34

Rated 5 out of 5

Best fins!

My favorite fins!

LESLIE L.

2019-12-15T12:21:46

Rated 3 out of 5

Okay but not for me.

I have other friends who love these fins but I couldn't make them work for me.

Tanya M.

2019-08-06T07:25:07

Rated 5 out of 5

Great Fins

I bought these because I liked the old military rocket fins and these fins work very well. I like that they are short which allows me to have more maneuverability while diving while offer plenty of propulsion. They are my new "go to fins" for diving. The spring strap are easy to get on and off but are very secure while diving. I prefer these over my ScubPro Seawing Novas which are great fins as well.

PATRICK K.

2019-06-07T14:45:22

Rated 3 out of 5

On the heavy-side but fit well

I guess the jury is still out on these, used for two dives and they seem okay, I'll know better after a few more dives, they seem heavy and that didn't work well in a dive where we had to kick-out a distance from the shore to avoid kelp...

Jim H.

2019-04-16T20:00:00

Rated 5 out of 5

Apeks RK3 Fins Review - Scuba Gear Reviews

Very maneuverable, easy to don/doff. I love these fins, spring strap is excellent. I wear a 8.5/9 in shoes so medium was a great fit. These fins are powerful but dont tax your legs too hard compared to other fins.

matthewk

2018-11-08T08:40:49

Rated 5 out of 5

Compact & Powerful

Bought these for drysuit dives and I also wanted to try a fin with a spring mount. The fin is not too heavy and helps with keeping feet down. Additionally it is super easy to don - spring stays taught on heel and doesn't move. Lastly, it doesn't take a lot to get moving in these fins. With normal kick power, the fin offers a great amount of propulsion. Got the yellow ones so I can be easily visible.

Deborah H.

2018-09-04T17:14:08

Rated 5 out of 5

Awesome power fins

These fins are awesome for TEC diving. Great for frog kicks and all the modified kicks you would use in SM,CCR, cave and wrench diving. Love the shorter blade that gives tons of power without fatigue. I traded up to these from the my Hollis F1 and am never going back.

nathan t.

Apeks RK3 Fins Specifications

  • Materials

    Thermoplastic Rubber (TPR)

  • Dimensions

    Medium: Blade Length 19.3" (49cm), Pocket Depth 8.66" (22cm), Pocket Width 3.54" (9cm)
    Large: Blade Length 21.46" (54.5cm), Pocket Depth 10" (25.5cm), Pocket Width 3.74" (9.5cm)
    Super: Blade Length 22.4" (57cm), Pocket Depth 10.63" (27cm), Pocket Width 3.94" (10cm)

  • Blade Type

    Vented

  • Open Heel/Full Foot

    Open Heel

  • Weight

    Medium 34.6 oz (982g)
    Large 42 oz (1.19kg)
    Super 45 oz (1.27kg)

  • UPC Code

    886957976243

Apeks RK3 Fins Size Chart
  Small Medium Large Super
Men 5-7 7-9 9-11 12+
Women 6-8 8-10 10-12 13+

About Apeks RK3 Fins

FEATURED REVIEWS

Awesome power fins

By nathan t.

These fins are awesome for TEC diving. Great for frog kicks and all the modified kicks you would use in SM,CCR, cave and wrench diving. Love the shorter blade that gives tons of power without fatigue. I traded up to these from the my Hollis F1 and am never going back.

Compact & Powerful

By Deborah H.

Bought these for drysuit dives and I also wanted to try a fin with a spring mount. The fin is not too heavy and helps with keeping feet down. Additionally it is super easy to don - spring stays taught on heel and doesn't move. Lastly, it doesn't take a lot to get moving in these fins. With normal kick power, the fin offers a great amount of propulsion. Got the yellow ones so I can be easily visible.

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 dry suit boots and a spring strap for easy donning and doffing. The RK3 is available in three sizes of medium, large and super. Apeks didn't give the RK3 fin a shoe size range as this can be very misleading. The environment that an RK3 is used in will tend to dictate the size of fin that you need, for example do you dive in a warm environment wearing wetsuit boots, or are you walking across pebbled beaches and wearing a dry suit and rigid dry boots? Both forms of footwear may be a size 9, but will take up different amounts of space in the fin foot pocket. Therefore, Apeks recommend that you visit your local dive store and try the fins on with your own footwear, just to ensure that you're getting the right fit for your style of diving.

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 carabiners for easy storage of the fins while accessing the dive site. Spring straps as standard, and custom designed buckle holds spring straps in optimum position. Simple push pin design allows simple replacement of springs if necessary. Fins are available in multiple colors. Fin dimensions and weights are as follows: Medium has a blade length of 19.3" (49cm) with an 8.66" (22cm) foot pocket depth, 3.54" (9cm) width and weigh 34.6 oz. (982 g). Large has a blade length of 21.46" (54.5cm) with a 10" (25.5cm) foot pocket depth, 3.74" (9.5cm) width and weigh 42 oz. (1.19kg). Super has a blade length of 22.4" (57cm) with a 10.63" (27cm) foot pocket depth, 3.94" (10cm) width and weigh 45 oz. (1.27kg).

Apeks RK3 Fins Features

  • Designed-In Collaboration w/US Military
  • Renowned for Outstanding Performance & Reliability
  • Rugged Thermoplastic Rubber (TPR) Fin
  • Over-Sized Foot Pocket to Accommodate Dry Suit Boots
  • Spring Strap for Easy Donning & Doffing
  • Based-On One-of-The First Vented Rubber Fins Sold-In North America
  • Popular Among Military & Professional Divers
  • Compact, & Ultra-Rugged for Use-In Harsh Environments
  • Improved Foot Pocket w/Spring Straps for Ease of Use
  • Easy Donning/Doffing Even w/Cold Hands or Thick Gloves
  • Standard Gear Issue Fin for Military, Special Ops, Coast Guard & Public Safety Divers
  • Blade Design:
    Short Wide Blade Provides Maximum Forward Thrust
    Maintains Great Maneuverability
    Vents Reduces Resistance-On Upstroke/Enhances Thrust-On Downstroke
    Vents Eliminate Vortexes that Occurs Along Back of Blade
  • Blade Material: Holds-Up-In Toughest Environments, Temperatures & Abuse
  • 2-Large Grommet Holes: Fit Most Carabiners, Easy Storage of Fins while Accessing Dive Site
  • Spring Straps: Custom Designed Buckle Holds Spring Straps-In Optimum Position
  • Straps Equipped w/Rubber Heel Extrusion for Comfort
  • Simple Push Pin Design Allows Simple Replacement of Springs if Necessary
  • Dimensions:
    Medium: Blade Length 19.3" (49cm), Pocket Depth 8.66" (22cm), Pocket Width 3.54" (9cm)
    Large: Blade Length 21.46" (54.5cm), Pocket Depth 10" (25.5cm), Pocket Width 3.74" (9.5cm)
    Super: Blade Length 22.4" (57cm), Pocket Depth 10.63" (27cm), Pocket Width 3.94" (10cm)
  • Weight:
    Medium 34.6 oz (982g)
    Large 42 oz (1.19kg)
    Super 45 oz (1.27kg)
  • Available-In Multiple Colors

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Experience powerful propulsion with these Apeks scuba diving fins, designed for efficiency.
  • Enjoy a secure and custom fit with the adjustable strap on these open heel fins.
  • These durable thermoplastic rubber fins are built to withstand rigorous scuba dives.
  • Vented blade design reduces strain, making these scuba fins ideal for long dives.
  • The comfortable foot pocket ensures a snug fit, enhancing your scuba diving experience.
  • Easy to use and adjust, these fins are perfect for both new and experienced scuba divers.

What's in the box:

  • RK3 Fins
  • MFG 2 Year Limited Warranty