Availability Immediately. Some items of this product are available in our stock. You can order only as many items of this product as we currently have in stock or the amount arriving to us.
The RK3 HD is the next fin in the RK3 range of fins. The RK3 HD is made from a higher density material than the standard RK3, which makes the fin stiffer and heavier. The RK3 HD was developed in response to feedback from divers who prefer a heavier fin. The new compound of the RK3 HD adds more weight to make it negatively buoyant.
An ideal fin for dry suit 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 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.
Size RK3HD
Medium
1.1Kg per fin
Blade 49cm
Foot depth 22cm
Foot width 9cm
Large
1.4Kg per fin
Blade 54.5cm
Foot depth 25.5cm
Foot width 9.5cm
Super
1.44Kg per fin
Blade 57cm
Foot depth 27cm
Foot width 10cm
The approximate size of the packed product or the sales package is 600 x 300 x 150 mm.
Weight 3 kg(The product may have a light retail packaging.)
Warranty 12 month(s)
Country of origin China
Comments
Vesa M.verified buyer, 24.7.2025
Overall rating
☆☆☆☆☆
— Show original
Good fins that make it easy to turn and the frog kick is effective. The only downside is that swimming on the surface in the open sea is a bit stiff and you have to put more power into your kicks compared to longer fins.
Joni M.verified buyer, 5.7.2025
Overall rating
☆☆☆☆☆
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The best I've tried.
Anonymousverified buyer, 13.3.2025
Overall rating
☆☆☆☆☆
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Very good fin, only flaw a little heavy
Anonymousverified buyer, 23.6.2024
Overall rating
☆☆☆☆☆
— Show original
A great flipper. It works really well with the picture suit and the negativity makes it easier to control a good lift. I recommend.
Anonymousverified buyer, 22.5.2024
Overall rating
☆☆☆☆☆
— Show original
High-quality flippers
chr...@...deverified buyer, 2.5.2024
Overall rating
☆☆☆☆☆
Excellent fins, the HD ones help, when your feet are a bit too light.
Roope M.verified buyer, 10.2.2024
Overall rating
☆☆☆☆☆
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Really comfortable, good feel and a lot of power when needed.
Arto M.verified buyer, 23.12.2023
Overall rating
☆☆☆☆☆
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Nice stiff ones. Fits well.
Antero P.verified buyer, 31.10.2023
Overall rating
☆☆☆☆☆
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Sturdy and precise flipper, you get strength in the kick.
Anonymousverified buyer, 22.9.2023
Overall rating
☆☆☆☆☆
— Show original
After testing different fins including Jet Fins and Tech Fins, these are the most suitable for precise movement underwater for me. I am completely satisfied with them and recommend them with my eyes closed.