SKU: 11254294800

APEKS RK4

Sale price$158.40 Regular price$176.00
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

APEKS RK4The sleek new Apeks RK4 fins offer optimal performance and exceptional manoeuvrability whether youre frog kicking, back finning, or diving open water with up and down strokes. With their adjustable stainless fin straps, they can be used with wetsuits or drysuits for energy efficient dives. The new Apeks RK4 Fins deliver optimum performance and excel for frog kicking and back finning underwater, without being too heavy or excessively rigid. You'll be

The sleek new Apeks RK4 fins offer optimal performance and exceptional manoeuvrability whether you’re frog kicking, back-finning, or diving open water with up and down strokes. With their adjustable stainless fin straps, they can be used with wetsuits or drysuits for energy-efficient dives.

The new Apeks RK4 Fins deliver optimum performance and excel for frog-kicking and back-finning underwater, without being too heavy or excessively rigid. 

You'll be conserving energy with these compact, wide-blade technical fins which provide outstanding manoeuvrability in confined spaces and overhead environments, easy finning in open spaces whether during an upstroke or downstroke.

With the RK4 fin, Apeks has Increased the edge of the blade on the side to give you more control underwater, yet kept some flexibility on the fin tip so it doesn't feel too rigid.

The Apeks RK4 Fins have an adjustable fin strap which allows one or both sides to be adjusted back or forward for optimal fit - each side by around 2cm. A nice big durable pull at the back makes it easier to don and doff in a drysuit (although the discerning divers among you worried about entanglement can still cut off the pull-handle while retaining the rubber guard on the spring.

Weight-wise the RK4 fin sits somewhere between the RK3 and RK3 HD. It's neither super heavy nor too rigid, which makes it comfortable for all sorts of divers whether in drysuit or wetsuit - in short, it is a great all-round fin.  

 

Features of Apeks RK4 Fins

  • Modern style technical fin that delivers the ultimate performance.
  • Durable and easy to recycle with one piece rubber construction.
  • Easy to put on and take off, even when wearing gloves.
  • Reduces snag hazards with integrated stainless-steel buckles that are durable and tough.
  • Provides exceptional maneuverability and allows small accurate movements in confined spaces, reducing disturbance of sand and silt. Perfect for frog-kicking.
  • Delivers a more energy efficient dive with optimum performance on both the upstroke and downstroke.
  • Allows quick and easy changes between settings for wetsuits and drysuits, with 2 adjustment points and stainless-steel spring straps.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11254294800

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4.0 ★★★★★
Based on 6 reviews
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Verified Purchase
Staci
Whiting, US
★★★★★ 5
My Dog's Favorite Balls
Size: 2 Count (Pack of 1), Style: Pack of 2
My dogs love these balls and won't play with any others. My lab has to carry the orange ball and track and retrieve the blue one. We have a system!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
J
Verified Purchase
Jay
Grantham, US
★★★★★ 5
Our perfect chew toy for a relentless chewer!
Size: 2 Count (Pack of 1), Style: Pack of 2
We have looked high and low for a ball that our Australian Shepherd couldn't destroy. Read on to find out why we are sticking with this one. We've used other Chuckit! products in the past to mixed degrees of success. We absolutely love the ring fetch toy, though the dog can destroy those rings in a couple days. We tried other "nearly indestructible" balls only to have to throw them away within a couple days because our dog had destroyed them and left small pieces around the house for the baby to find. We have been COMPLETELY satisfied by these balls. They fit with the Chuckit! stick, which is a great bonus, but the most important thing is the dog hasn't been able to get pieces torn out of them. His orange one is his "indoor toy" and he's been going to town on it for weeks without any indication of wear. We periodically inspect it and are always floored to see that it's generally in the same condition as when we gave it to him. The orange color did fade a little when he left it outside for a few days in the sun, but considering how well it works otherwise, this didn't concern us at all. The "whistling" aspect of this ball is... well, an interesting gimmick but I wouldn't buy it if that's what you're interested in. Sometimes it makes noise in flight, other times it doesn't. We don't care. He chews it until he's tired of it (which is usually hours) and it squeaks and squorks on his teeth which keeps him happy as a clam. We honestly didn't think we'd find a ball that could keep up with his chewing, but this one has been phenomenal. We cannot recommend it enough!
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Reviewed in the United States on January 30, 2021
M
Verified Purchase
Mitch
Bozeman, US
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
C
Verified Purchase
Casey B
Birmingham, US
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch. These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds. The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024
E
Verified Purchase
E. Schall
Charlottesville, US
★★★★★ 5
My dogs favorite balls
Size: Medium
These are great for my dog who always has to have a ball in her mouth. Not too hard so I don't have to worry about her teeth. They last for ever. They do lose their shape a little over time (like I said, she always has a ball in her mouth) they become a little oval in shape. They still bounce, she still chases it and she still chews on it so I don't think she notices or cares. I've gotten her a bag full of these over time and I have only seen one that she chewed a chunk out.
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Reviewed in the United States on September 28, 2023

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