Special Collaboration Premium Carbon Fins
UMMY × NAVY APPAREL
UMMY × NAVY APPAREL Mermaid UMMY ONE Designer's Edition Carbon Fins Diving Fins Freediving Skin Diving
Regular price¥89,800
tax included
Shipping calculated at checkout.
- Free shipping within Japan (international shipping charged separately)
- Lead time: approx. 1.5 to 2.5 months (delays may occur)
| Specifications |
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| Size |
EU 30-31 (21-22cm) EU 32-33 (22-23cm) EU 34-35 (23-24.5cm) EU 36-37 (24.5-26cm) EU 38-39 (26-27cm) EU 40-41 (27-28cm) EU 42-43 (28-29cm) EU 44-45 (29-30cm) *If you're unsure about sizing, please use our rental foot pocket service *We also welcome sizing questions via DM. Please include your foot size and the brand and size of the foot pocket on the fins you currently use. |
| Lead time | Approx. 1.5 to 2.5 months (may be shorter or longer than this period) |
| Recommended for | Freediving, skin diving, spearfishing |
| Country of manufacture | Taiwan |
| Warranty |
3 years • If a blade cracks, splits or breaks under normal use, we will replace the pair free of charge • Please be sure to keep a record of your purchase details (order number and name) *Free replacement is limited to one time *Cracks, splits or breakage of the blade caused by the customer are not covered *As blades are sent to Taiwan, replacement may take 1-2 months *Foot pockets and water rails are not covered |
| Customs duties | Customs duties may be payable upon delivery in some cases (around 1,000-2,000 yen per set). In that case, we kindly ask that the customer bear this cost. |
| Care & precautions |
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[UMMY × NAVY APPAREL] UMMY ONE Designer's Edition
Mermaid
UMMY, which has revolutionized Japan's freediving scene, has finally teamed up with Navy Apparel, an apparel brand for ocean lovers! NAVY Apparel's one-of-a-kind, stylish designs come together with UMMY ONE, our sleek, high-quality carbon fins, to create beautiful fins that break every convention of carbon fins. As a playful touch, the mermaid is wearing UMMY's best-selling Streamline mask.
Premium fins that look great on men and women alike and make life in the ocean even more fun.
NAVY APPAREL
Grew up close to the ocean, with Kansai dive shop "Navy Company" as a childhood playground.
Launched Navy Apparel at age 27 while working at Navy Company.
Creates colorful designs centered on fish and the ocean, including collaborations with Orion Beer and others.
Yu K Junior
Age 35
Dive image
UMMY ONE Side Story
Meeting Prussian Blue
It took a full two years for UMMY carbon fins to go from concept to launch, with dozens of sets of sample fins along the way... Without a factory of its own, UMMY negotiated, planned and developed with fin makers around the world, until it finally had a fateful meeting with Prussian Blue, a top fin maker from Taiwan.
Technology × Execution
The proven quality of Prussian Blue's fins, the innovation of the foot pockets they developed, and above all their willingness to flexibly meet UMMY's demanding requirements led UMMY to form a strategic partnership with them. It was the moment we became certain that combining UMMY's ability to deliver on customer needs with Prussian Blue's technology would create the very best fins.
The Fins UMMY Made Possible
UMMY set out to create fins that satisfy every diver who loves breath-hold diving, whether freedivers, skin divers or spearfishers. To make that happen, we spent a year of trial and error, rethinking design, color options, functionality, foot pockets and price from scratch, and succeeded in developing fins that UMMY's owner is truly proud of.
The Origin of the Name UMMY ONE
ONE is a word of beginnings, meaning starting from scratch, and it also means "number one," the very top. UMMY ONE was named with our commitment to never forget the first step we took as we keep moving forward, and our aim to become the most loved fins in the world.
What Makes UMMY ONE Special
Among the Lightest Carbon Fins
When it comes to fins, lighter is better. While even the lightest carbon fins used to weigh around 600 g per foot, UMMY ONE weighs only about 400 g. Saving about 200 g greatly reduces the strain on divers. You'll feel the difference in every kick, whether skin diving, freediving training or competing. You'll be amazed at how light they are the moment you pick them up. And thanks to a special treatment of the foot pockets, they now float on the surface, so there's no need to worry about losing them in the ocean.
Maximum Efficiency and Propulsion
UMMY ONE's carbon layers are bonded using Prussian Blue's proprietary technology, giving the fins maximum efficiency and propulsion. The blade is 75 cm long with a 26° angle. A blade that is too long reduces kick efficiency and puts more strain on the legs. Prioritizing efficiency and ease of handling, UMMY ONE meets the needs of many divers with a blade length that delivers maximum efficiency in every kick and a 26° angle suited to every type of dive: surface swimming, horizontal movement underwater and vertical descents.
Stylish Design
UMMY products must always be stylish. On UMMY ONE, the UMMY symbol is used in the blade tip and in the carbon layering design on the underside. Combined with a blade cut perfectly balanced with that symbol, the result is a truly one-of-a-kind, beautiful fin.
Wide Range of Logos and Colors
To meet the needs of many divers, you can choose between two logo types: BIG UMMY with a large logo and SMALL UMMY with a small logo. Each type is available in 5 colors.
Comfortable Foot Pockets
Prussian Blue's new X1 foot pocket is a perfectly balanced work of art: easy to put on, comfortable to wear and pleasant to kick with. The foot pocket is also soft and very stretchy, so in most cases you can wear the same size barefoot or with 2 mm socks.
How to Order
STEP 1: Choose the blade stiffness
Two stiffness options: Soft and Medium. As a guide, we recommend Soft for up to 70 kg (or under 50 kg with strong legs), and Medium for 70 kg and over (or under 70 kg with strong legs).
STEP 2: Choose the water rail color
2 colors: Black and White
STEP 3: Choose the foot pocket color
2 colors: Black and White (White expected to arrive July–August) *May be delayed until after August
STEP 4: Choose the foot pocket size
Available in 6 sizes. If you're unsure which size to choose, try our foot pocket rental service. If you purchase within 3 months of renting, we'll refund the rental fee.
FAQ
As these are made to order, it takes about 1.5 to 2.5 months (sometimes sooner, sometimes later). Please order with plenty of time to spare. The white-logo type and UMMY ONE Short usually have shorter lead times and can often be shipped in about 1 month.
Size exchanges are possible, but they incur the cost of the foot pockets plus round-trip shipping to Taiwan. To avoid choosing the wrong size, we recommend using our foot pocket rental service.
Yes, exchanges are possible, although round-trip shipping to Taiwan applies.
Please choose your size using the EU and Japanese sizes as a reference. The foot pockets stretch well, so in most cases you can wear 2 mm socks in the same size. If you're unsure, please use our foot pocket rental service. *Service available in Japan only
The blades are under warranty for 3 years from the date of order. Please be sure to keep your purchase details (order number and name). If a blade cracks or breaks under normal use, we will replace one pair free of charge. *As blades are sent to Taiwan, replacement may take 1–2 months. *Foot pockets and water rails are not covered by the warranty.
We accept returns and exchanges only if the item is defective or we sent the wrong item. We cannot accept returns or exchanges for change of mind.
Carbon blades are lightweight and offer great propulsion, but they are very delicate. Hitting rocks or coral can crack or break them, so please handle them with care. Also, never jump in from a boat wearing them, as this may break the blades. After use, rinse them right away with fresh water and dry them in the shade, away from direct sunlight.