Meet our ground-breaking carbon fins that are progressive in every way. With top notch performance and configurability, they are designed to enable a wide range of spearos push the boundaries of what is possible. Every aspect of the Alchemy S30 is designed in pursuit of greatness. Based on a completely new blueprint which aims to help spearos outperform themselves even in the most extreme scenarios, they are engineered to go full force, all the time. S for Speed, S for Safety, S for Spearfishing.
These groundbreaking blades feature a 30 degree angle. Such an angle requires less effort from the diver when kicking, which practically translates to less oxygen consumption. Combined with the extra 3 degrees that C4 (300 & 400) foot pockets offer, the fins’ effective angle totals 33 degrees. This combination offers an “early start” of the blades’ working spectrum and makes them feel softer than they really are. The blades also feature an extraordinary mirror finish on their front side and matt finish on the back. Their unique serial number tag is embedded into the blades’ lamination, ensuring the authenticity of your Alchemy product along with a hologram tamper-proof individually numbered tag on your warranty certificate document.
S-30 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-30 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-30 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: 150 mm
Blade length after the angle: 620 mm
Blade's total length: 770 mm
Blade's total width: 195 mm
Blade's angle: 30°
Angle type: Radius
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
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.
The make, length, flexibility, strength of the fins are amazing. I bought it though it was meant for spearfishing but I use it for depth training, teaching and fun dive and I can say amazing fins. Never doubt Alchemy products at all.
It's a really good quality fins but the soft its little bit too soft for me. The rest it's real good product. Look really attractive and elegant. Good material and comfortable.
Usually, i use V330 for doing spearfishing and freediving. Recently, i turned to S30. It's different but i don't regret my choice. They are more in adequation with my spearfishing style. Good handmade construction and nice packaging with the serial number for the 5 years warranty! You can go on it with closed eyes!!!
Lightest and toughest fins in the game! I always get compliments by other divers fascinated with how light Weight my alchemy S30s are paired with c4 300 Foot pockets. I can go all day swimming the blue on long shore dives with no problems. Love the performance and the look! The bar has been set high!
Best fins I've ever had! Especially being rare to have on Guam.
Great fins, almost feels like I'm not wearing them. Does the job very well. Two things to note. The pockets weren't glued to the blades very well. I have to glue the rails again. The pockets are also a tad loose.
It's a great product, great quality, hopefully you guys could sell it in more remote places like Panamá! There is a big market in Central America!
Pushing the boundaries
of what's possible.
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
Do you want to learn more about our commitment to setting the highest standards of sustainability in freediving?OUR WEBSITE IS CO2 NEUTRAL
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.