alchemy S

€400

Our spearfishing-only, premium carbon fins take performance and efficiency to a whole new level. Bringing an amazing amount of power to your legs, they go full force, all the time.

Footpockets
Size
Logo Color
Water-Rails Color
Stiffness
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Add insoles (save 6€) ?
Quantity (pair)

Meet the game-changing fins that are designed to enable spearos improve their kicking technique. Demanding oceans and XL fish require power, we can deliver that. The Alchemy S features a unique carbon layering pattern which minimizes the effect of “bicycle” kicking, a common characteristic of nearly all spearos. By its reduction, divers can decent or ascent quicker, thus burning less oxygen. Are you ready to go further? S for Speed, S for Safety, S for Spearfishing.

These progressive blades feature a 23 degree angle and fit Pathos & Cetma (S-Wing) footpockets. They feature an extraordinary mirror finish on their front side and a matt finish on the back. Their unique serial number tag is embedded into their lamination, ensuring the authenticity of your Alchemy product along with a hologram tamper-proof individually numbered tag on your warranty certificate document.

S feature the ultimate carbon layer positioning within each blade. Eleven (11) layers of premium, EU-made, 100% carbon fiber, selected especially for deep sea applications, are positioned in an exceptional way, in order to offer an unbelievable bending profile, with the ultimate feedback, nerve, and speed. Having the first ever V shaped reinforcement layer that goes beyond the blade's angle, raw power comes straight from the beginning of each and every kick.

S are manufactured in compliance with the most demanding standards in constant ambient temperature and humidity. 45 tons of total pressure combined with vacuum assistance (VRTM) and 12 hours post curing in temperatures controlled through PLC (Programmable Logic Controller) with a deviation of less than ± 0,1°C.

S blades end in a dolphin tail shape (D.Tail). This shape gives the best performance results, based on hydrodynamics studies (Rensselaer Polytechnic Institute / T. Wei) and tests made in C.F.D. software (Computational Fluid Dynamics). The dolphin tail shaped ending provides maximum thrust with the least possible energy consumption.

Our 100% silicone hydrodynamic water rails have been designed in a three-dimensional (3D) CAD environment and are produced in the United Kingdom by a high end silicone production facility. Trials and studies in C.F.D. software showed that Alchemy water rails detain and drive the water on the blade, without losing their shape, even in the toughest conditions. Even in the limit bend of the blade, the water rail retains its shape, drives the water from the beginning of the stroke and provides immediate response to the diver's moves. Compared to rubber, silicone is far superior when it comes to strength and shape maintenance under extreme conditions.

Choosing the correct stiffness & footpockets for your fins can be a cumbersome experience. Here's how to get it right.

 

Alchemy fins/blades are produced upon ordering. We do not keep them in stock. Lead time may vary from 5 to 25 working days, depending on work load. Normal lead time is 10 working days. Please be sure to contact us in order to know the waiting time before you place your order.

If you purchase blades with footpockets from our online shop, you will receive a fully assembled pair of fins, ready to use. However, if you only order blades and plan to attach them to footpockets yourself, please keep the following points in mind:

  • We only use glue to attach the blades to the footpockets. Please contact us for guidance on how to do it the right way.
  • Avoid drilling the blades as it will void the 5-year warranty.
  • Let us know the type of footpockets you plan to use as longer or shorter water rails may be necessary.
  • Ensure that the end of the footpockets' tendons aligns with the length of the already installed water rails. If footpockets without side tendons or shortened purposely are used, the water rails must be extended accordingly. The side edges of the blades should never be left exposed.

Please reach out to us if you have any further questions or concerns.

Manufacturing process: VRTM
Carbon fiber layers: 11 (eleven)
Carbon fiber reinforcement axis: 10 (ten)
Carbon fiber content: ≥72%
Blade length before the angle: 120 mm
Blade length after the angle: 600 mm
Blade's total length: 720 mm
Blade's total width: 195 mm
Blade's angle: 23°
Angle type: Corner
Warranty period: 5 (five) years from the day of manufacturing
Max. retraction speed: 20,524 m/sec *
Oscillation step (feedback time): 0,0815 sec *
* Measures taken in lab conditions @ 25°C temperature, 55% relative humidity, 1013hPa pressure

 

 

FREEDIVING
80%
SPEARFISHING
100%
UW PHOTOGRAPHY
85%
RECREATIONAL
70%

Throughout the years, some of the world's deepest freedivers and spearos
have used Alchemy fins to set countless records.
Here's what they had to say about us.

Sofia Tapani
Sofia Tapani
Freediver, NR Holder
"Lightweight, smoothly flexing in the water and very durable for the rough Swedish conditions I dive in. The feeling of diving is seamless, I find myself not thinking about having fins on- like an extension of my body movements. Thank you Alchemy, for making great products!"
Simona Auteri
Simona Auteri
Freediver, NR Holder
"The Alchemy V330 are not only the sleekest design out there, but they are also great for performance: in fact, I have done a World Record and 3 National Records with them! The C4-400 footpockets are super comfortable and I can use the fins for hours whilst snorkeling or on a PB dive and they work without much effort. "
Ryuzo Shinomiya
Ryuzo Shinomiya
Freediver, NR Holder, Instructor, Creator
"Alchemy blades are the same as samurai blades. A beautiful tool to which we owe our lives. Let's travel to the deep sea, to the world's oceans, and to dolphins and whales everywhere."
Robert John
Robert John
Spearo, Guide
"I need to trust my fins the same way I’d trust a dive partner to have my back. They need not to break at depth or wear me out after an 8-hour competition. Whether I’m performing fieldwork in marine biology or shore diving for pelagics, I’m running my alchemy’s."
Neza Cec
Neza Cec
Freediver, NR Holder
"The Alchemy fins transformed my diving experience! They made my dives effortless and fast, truly a game changer."
Luca Malaguti
Luca Malaguti
Freediver, NR Holder, Instructor, Blogger, Spearo, Creator
"Alchemy's carbon stands in a category of its own. As a former engineer, I enjoy the craftsmanship and quality they put into their products. Trusting your fins at great depths and in challenging spearfishing environments is essential. They are your life support. I recommend these fins to anyone that needs a product for performance, comfort and longevity."
Linda Paganelli
Linda Paganelli
Freediver, NR Holder, Instructor
"I think I was one of the very first freedivers using Alchemy. In fact I got my first pair in 2011 when the company just started. 12 years later I'm still a fan, I use Alchemy both for working and training and last year they brought me to 92 meters at the end of my deep diving season."
John Prins
John Prins
Freediver, Instructor
"My Alchemy fins are fast and responsive, with lots of power on demand. They make light work of carrying up heavy weights from the ocean floor, with instant acceleration from the bottom. And the other day I was caught in a 3 knot current and only made it back to shore because of my fins. "
Garrett Moss
Garrett Moss
Spearo, Instructor
"I’ve been using the Alchemy V330 Pro short bifins for almost four years now, they are the best short carbon fins I have ever had! The power-to-size ratio and portability of these fins are top-notch. They also fit perfectly in my luggage and are very easy to travel with."
Cristian Castano Villa
Cristian Castano Villa
Freediver, NR Holder, Instructor
"In my opinion, Alchemy fins are simply the best fins you can find right now in the market. I've used them for many years in several international competitions, always with great results. The responsiveness of the blade material is phenomenal and you can use them for any underwater activity. "
Chris Funada
Chris Funada
Freediver, Spearo, Instructor
"As someone who's had the luxury of trying dozens of freediving fins, I can say with confidence that the V3-30's are by far the best fins I've ever used."
Carlos Coste
Carlos Coste
Freediver, WR & NR Holder, Instructor
"The combination of performance, comfort, efficiency, durability, and style in Alchemy fins is unmatched, and I am honored to recommend them to my students and team partners. "
Aaron Young
Aaron Young
Spearo, Guide
"A good set of fins won’t feel like you are wearing fins at all. My alchemy fins feel like a natural extension of my dive. Light and smooth, yet sharp and powerful."
alchemy S Size Guide
SIZE GUIDE
alchemy S Shipping
SHIPPING
WARRANTY
alchemy S Care
CARE
Customer Reviews
Lawrence
25/11/2020
UNITED STATES

Perfect for spearfishing! Lightweight and really durable!

Verified Buyer
David Stephens
26/11/2020
UNITED KINGDOM

Best fins I have ever used (I have used a lot!) - perfect for spearfishing, really reactive and light.. and also look stunning.

Verified Buyer
Eden
27/11/2020
TAIWAN

Really good.

Verified Buyer
Mariyam Thuhufa
27/11/2020
MALDIVES

The fins is easy to use and carry around while travelling. It has a powerful kick even when it's made of a light material. The pocket is soft and very comfortable.

Verified Buyer
Camila Caba
27/11/2020
UNITED STATES

I love the product so much I tell everyone I know to get them.

Verified Buyer
Feras
28/11/2020
QATAR

Very nice design, sizing and comfort is great.

Verified Buyer
Levente
30/11/2020
UNITED STATES

Very high quality fins, since I've been using them I've been cutting through the water effortlessly!!

Verified Buyer
Phil Cothran
30/11/2020
UNITED STATES

The Alchemy S fins are the best carbon fiber freedive fins I've ever had the pleasure to use. Lightweight sleek design and the most comfortable yet durable foot pocket on the market. Love my Alchemy fins!!

Verified Buyer
Mario Alexandre
30/11/2020
PORTUGAL

The best fins i have ever had!

Verified Buyer
Sofiane Meskouri
30/11/2020
ALGERIA

I have tried almost all the carbone fins brands.. Alchemy is far better than all!

Verified Buyer

Pushing the boundaries
of what's possible.

Reforest the World
Reforest the World

We'll plant a tree for every product we sell via our eshop. A real tree, in a real planting project, in Madagascar.

SEE OUR FOREST
Sustainability
Sustainability

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OUR WEBSITE IS CO2 NEUTRAL
Quality
Quality

Find out why we are commited to producing the best carbon fins in the world.

SEE HOW WE PRODUCE OUR FINS

Our products are made with the highest quality materials
and craftsmanship. Alchemy fins purchased from an
authorized retailer are fully warranted against defects in
materials and workmanship for 5 years.
See terms & conditions.