--- product_id: 176637459 title: "Apeks RK3 Military Rubber Fin with Adjustable Stainless Steel Spring Straps" brand: "apeks" price: "$419.63" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/176637459-apeks-rk3-military-rubber-fin-with-adjustable-stainless-steel-spring store_origin: US region: United States of America --- # Apeks RK3 Military Rubber Fin with Adjustable Stainless Steel Spring Straps **Brand:** apeks **Price:** $419.63 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Apeks RK3 Military Rubber Fin with Adjustable Stainless Steel Spring Straps by apeks - **How much does it cost?** $419.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/176637459-apeks-rk3-military-rubber-fin-with-adjustable-stainless-steel-spring) ## Best For - apeks enthusiasts ## Why This Product - Trusted apeks brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description 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 ## Features - Designed in Collaboration w/US Military - Renowned for Outstanding Performance and Reliability - Rugged Thermoplastic Rubber (TPR) Fin ## Images ![Apeks RK3 Military Rubber Fin with Adjustable Stainless Steel Spring Straps - Image 1](https://images-na.ssl-images-amazon.com/images/I/51pVb2Ny0vL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ They would be better if they had Bluetooth *by E***A on Reviewed in the United States on July 21, 2019* I got these fins to replace my Cressi spits that I had for years and finally started cracking. The Apeks are very nice, Just a tad shorter but wider so I can fit them on my roll on bag. Performance is great. Better than the Cressis and I was just down in mexico with them for a week and was kicking like a madman doing some large wildlife photography. Not only could I keep up with the big fish (well as much as a human can) but they were very comfortable and no sore spots, blisters or anything. I also really like the spring straps and it's easy peasy. And there are little holes where you can take them off and clip them to your BC which is huge when you are exiting the water with a large camera in rough seas. ### ⭐⭐⭐ But I do like the idea of the shorter fin because I do ... *by M***A on Reviewed in the United States on May 18, 2018* I really wanted these pair but I'm usually a women's 8.5/9 in sneakers and heels because I have a wide foot. Even with the booty size 8 women's (7 men's) the Medium was way too big for me and they don't make a smaller size, and I think these are only made for men. But I do like the idea of the shorter fin because I do not have the strength to paddle long strokes, if they made a smaller size I think these would have worked out perfectly for me. I really wanted them because of the spring around the heel, I ended up with the stretchy string ones that worked out really well because the adjust straps are not easy to put on in the water and I lost a pair of the adjustable strap ones when I got caught in a rip tide, not sure if the springy or stretchy string would work well but the spring ones my boyfriend had worked well for him, he didn't lose his, anyways, point being, if you're going to put your fins on, on land, then the adjustable strap ones are fin, on a boat when you wet your foot the closed heel work ok but you dont have booty, but the open heel spring/stretchy string work well if you have to walk over rocks from shore to get to ocean and then you have to put them on in the water. One thing my boyfriend mentioned about the spring, they can't be replaced where the stretchy string ones can be replaced if needed. Not sure why they would need to maybe they loose elasticity over time. ### ⭐⭐⭐⭐ Very good fin and strap *by K***. on Reviewed in the United States on April 30, 2017* Very good fin and strap. I'm a commercial diver. I changed to these from the ScubaPro Jet fins. I dove them for twenty years, super durable compact fin. I was looking for some more heel protection so I tried these. They do help protect the heel of my booties but the rubber isn't as durable as the tried and true ScubaPro Jetfin. They seem to scar up easier but less than other fins. The ScubaPro Jet fin is still champ in durability. I will say the stainless spring strap is amazing. I've been using the RK3s for about 8 months now and no failures or tears yet. I hope they can hold-up to the abuse of commercial diving because I like the extra heel protection. We will see.If your a sport scuba dive, this purchase is a no brainer. You will get your money's worth out of them for sure. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/176637459-apeks-rk3-military-rubber-fin-with-adjustable-stainless-steel-spring](https://www.desertcart.us/products/176637459-apeks-rk3-military-rubber-fin-with-adjustable-stainless-steel-spring) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*