$249.00
The travel fin that doesn't compromise. Folds 3× smaller, weighs 1.6 kg — yet matches the propulsion efficiency of leading professional dive fins in peer-reviewed testing (Piskur 2022).
These specialized, lightweight fins can be folded in half lengthwise to create a travel-ready package. They can be redeployed for diving within seconds. The blade's flexible, durable membrane was inspired by fish fins. The small fins pack more power than you'd expect, and are highly maneuverable. The open-heel pocket is user-adjustable, with four points of adjustment and two different-size bungee straps.
Engineered entirely from Hytrel® ECO B — a single advanced thermoplastic elastomer with up to 74% biomass content. Every component of FoldingFins® — blade, folding mechanism, foot pocket — is built from this one premium material.
Mono-material engineering eliminates the failure points of conventional fins: no glue joints, no delamination, no dissimilar-material temperature mismatch. The result: thousands of fold cycles without fatigue, uniform performance from tropical to cold water, and full recyclability at end of life.
Not just plastic. Not just rubber. One engineered material, purpose-built for the foldable revolution.
30 days from delivery to try them on at home. If they don't dive your way, send them back unused, in original packaging — customer covers return shipping (~€15-30 EU / $30-60 international). Full return policy ›
Worldwide shipping with Fedex
EU: 1-3 business days
America: 3-6 business days
Asia: 5-7 business days
Oceania: up to 10 business days
1x Pair of Folding Fins
1x user manual/warranty
1x regulation key
2x small size heel holder
2x large size heel holder
2x extra lock pin
2x silicon band
Length (folded): 23.7 in. / 60.2 cm
Width (folded): 3.3 in. / 8.5 cm
Length (unfolded): 23.7 in. / 60.2 cm
Width (unfolded): 11.6 in. / 29.4 cm
Weight: 3.7 lb. / 1.7 kg
The open-heel pocket adjusts via 4 pin positions and 2 bungee strap sizes (both included in the box). It fits boots from EU 36 to EU 48 — that's US 4½ to US 14, UK 3½ to UK 13.
Wear with a 3–7 mm neoprene boot for best comfort. Both bungees and the adjustment key ship with every order.
Now shipping with stainless steel spring heel straps — the PRO-grade standard used by ScubaPro Jet Fin, Apeks RK3, and other top-tier scuba fins. Replaces the previous elastic heel strap.
Previous elastic heel straps remain available as optional accessory while stocks last.
Mariusz Szymański is co-founder of EXOTECH and co-inventor of the FoldingFins® patented folding mechanism. As lead consultant on construction and functionality, he shaped the engineering principles behind the world's first truly foldable dive fins.
Beyond FoldingFins®, Mariusz served as the key technical lead on the joint R&D project with the Polish Naval Academy that validated the mechanism's hydrodynamic performance against leading professional fins (Piskur 2022, MDPI).
He is also operator and pilot of the HARRIER SDV underwater vehicle, and co-author of SPEAR — EXOTECH's next-generation autonomous underwater diver delivery system.
Underwater expertise & roles:
- Co-Founder & Co-Inventor — EXOTECH / FoldingFins®
- Lead of the Polish Naval Academy joint R&D project
- HARRIER SDV submarine constructor / operator / pilot
- SPEAR co-author
- Archaeological & wreck diver
- Certified rebreather DECO diver
- Professional underwater environment expert
“The idea of a Folding Fins is the result of my many years of experience in recreational, professional and experimental diving. I needed light, mobile and maximum performance fins. This has been achieved thanks to the available modern technology and materials.”
Nuno Gomes is a 2× Guinness World Record holder and one of the most respected technical divers in the world. He set the deepest cave dive record at 282.6 m (927 ft) in Boesmansgat, South Africa, on 23 August 1996. He then set the deepest sea water scuba dive record at 318.25 m (1,044 ft) in the Red Sea in June 2005 — a record he held until 2014, when Ahmed Gabr broke it at 332.35 m.
Nuno chose FoldingFins on his own — there is no commercial endorsement deal behind this. He owns a pair and uses them in his own diving. His testimonial, given to FoldingFins directly:
"I own a pair of Folding Fins. I find them to be light yet strong and robust, these fins can be used for any type of diving. The Folding Fins can be used for the dolphin kick, flutter kick or the frog kick, which I prefer. The fins will make available plenty power and speed as and when required. I enjoy diving with my Folding Fins."
— Nuno Gomes, Diving Legend
When a diver of Nuno's stature picks up a pair of fins, it's an independent vote of confidence — not paid promotion. For everyone designing, building and selling FoldingFins, that matters more than any marketing line we could write ourselves.
“I own a pair of Folding Fins. I find them to be light yet strong and robust, these fins can be used for any type of diving. The Folding Fins can be used for the dolphin kick, flutter kick or the frog kick, which I prefer. The fins will make available plenty power and speed as and when required. I enjoy diving with my Folding Fins.”
Polish Special Forces "FORMOZA"
Multiple diving champion of Polish Navy
PADI & SSI & CMAS & NAUI Instructor
“From the very beginning I was involved in the Folding Fins project. As a Special Forces veteran and experienced diving instructor, I was shocked by the hydrodynamic properties of the final model. Folding fins make swimming easier and give great diving opportunities. I can barely feel them on my legs using frog kick style. I am convinced that the fins will find their supporters among recreational, sports and military divers, for whom the weight and dimensions of the fins are an important element.”
World's first folding mechanism - like the Transformer of fins. With a simple click&flip, the mechanism folds and unfolds them within seconds! Plus, it's patented, so you know you're getting the real deal.
Designed to make your diving experience more convenient than ever before. Weighing only 1.6 kg, they are lightweight and easy to transport. When folded, they take up to 3 times less space, leaving you with plenty of room for all your other essentials. Say goodbye to bulky dive gear and hello to hassle-free travel.
Folding Fins feature an advanced strap adjustment system that allows you to fine-tune the fit to your exact specifications. Each strap can be easily adjusted up and down, providing unparalleled precision and control over your sizing. Dive with confidence, knowing that your Folding Fins are customized to your unique preferences.
Ditch the old way of choosing fin sizes. Our Folding Fins are one-size-fits-all, giving you the perfect fit every time.
The cutting-edge 4-point system and adjustable straps offer huge variation of combinations for the perfect fit. Each pin can be easily pulled out to adjust the straps to the given length.
The membrane between two flexible blades mimics the natural movement of a fish tail, providing unmatched agility and speed. Just feel connected with the ocean like never before.
Experience unmatched maneuverability and efficiency with our bio-mimetic fins. With their advanced construction, you can easily execute turns, helicopter movements, and reverse kicks without any trouble. The membrane adapts to the water flow, allowing for a smooth and simple experience. Dive like a pro with the high-performance fins.
With the innovative bio-mimetic membrane, you'll effortlessly catch and push water for unbeatable thrust force. Coupled with the thin, sharp blades that slice through water with ease, your movements will feel light and smooth like never before.
Discover the depths like never before with Folding Fins – perfect for experts and beginners alike. Join the revolution and dive into your next underwater adventure...
As it moves the unique membrane creates a hydrodynamic tunnel that streamlines your movement and enhances your performance. Feel your true power and enjoy the ultimate diving experience.
The blades' sleek and streamlined design maximizes performance while minimizing muscle energy consumption.
Extensive testing led our designers to select ECO B elastomer, a sustainable material that delivers the same high-performance as standard materials, but having in the same time up to 72% biomass content. This innovative material is resistant to UV sunlight, rapid deflections, sea saltwater, and various temperatures.
Folding Fins are proudly manufactured in the EU with a commitment to high-quality production standards. Our state-of-the-art factories ensure every part and process is carefully inspected by experienced professionals. Plus, we source our materials from trusted local suppliers.
User-friendly design with replaceable elements construction. We've carefully crafted each component to ensure easy replacement, making maintenance a breeze. Our innovative approach not only makes your life easier but also supports a sustainable future.
Save the oceans together.
Folding Fins are crafted from a unique elastomer formula that can be recycled multiple times without losing its properties, making them eco-friendly and sustainable. This is not just a dream, but a reality.
Say goodbye to bulky and wasteful packaging - our fins are designed for efficiency and sustainability. With a perfectly fitted package and compact size, we're reducing our carbon footprint with every delivery.
Invest in fins that are not only better for the environment but also for your wallet. With a modular design and easy repair options, our Folding Fins last longer than traditional fins, reducing waste and saving you money in the long run.
Our commitment to sustainability extends to our packaging. We use 100% recyclable cardboard boxes, making the paper journey just as sustainable as your underwater adventures.
Discover the perfect balance of performance and sustainability with our Folding Fins, made of ECO B elastomer. With up to 72% biomass content by weight, this recently introduced range of solutions delivers the same high-level performance as standard elastomers.
