Fins4u Pure Evolution

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100% Pure Carbon Blades, with Pathos Foot Pockets

Review from Tanya Streeter (see images)

"I've had the opportunity to dive with the  "Pure Evolution" bi-fins over the past couple of months and I'm really impressed.  Where other brands have failed to offer quality of design and material, Fins4u should be congratulated for putting these excellent fins on the market.  If you're looking for bi-fins that offer power and stability for both recreational and competitive freediving, you should definitely give these a try!" - Tanya Streeter, World Record Freediver.

A further review from apnea addict


Using 50 years of Freediving/Spearfishing experience, these exciting new fins have been created

Following many design, supplier changes and vigorous testing these new exciting fins were born! Enter ‘Pure Evolution’

Incredibly light and reactive due to the highest quality pure carbon blades, as well as the light comfortable Pathos foot pockets.

T shaped water flow edging, which is designed to keep the fins straighter whilst finning, for increased efficiency.

Our fin blades are made of advanced carbon (100%) material with an epoxy resin, which is also used in both the aerospace and automotive industry to name a few.  Each blade goes through a very tightly controlled production process to ensure the highest possible standard.  They are Produced under high pressure/high temperature (up to 140˚C ), which combine to make the blades ultra-reactive and durable (retain their quality for many years).

Blade stiffness medium with Soft pockets for the best setup... if you require another option please contact us



Width – 20cms

Length- 78.5cms


20 (Soft) - 228grams

25 (Medium) - 239grams

30 (Hard) - 253grams

Angle - 21 degrees

Foot Pockets

Pathos Fireblade (Size 42-44, weight 404grams) -

Size Options

36-38 – 232mm x 94mm

38-40 – 242mm x 96mm

40-42 – 255mm x 98mm

42-44 – 265mm x 100mm

44-46 – 280mm x 100mm

46-48 – 290mm x 103mm

48-50 – 300mm x 105mm

Width, measured from widest point (all internal measurements)

Overall Fin

Width – 20cms

Length – 93cms

Weight – 804grams (based on medium blade, with 44-46 foot pocket)

Review from FreediveUK

Here is a video clip of the fins during testing

Your fins will arrive ready to go! We carefully take the time to ensure that the blades are stuck to the footpockets, with a professional finish. This process can take a few days, allowing us to trim the blade so it fits the foot pocket perfectly so that the angle is the correct place for optimum performance.

Please call us on 07595 466393 to discuss your specific details/requirements/sizing, or just for a general chat! Alternatively email us at


UK - 7 to 12 working days

Europe - 7 to 15 working days

America - 7 to 15 working days

Rest of the world - 12 to 17 working days

The Pure Evolution blades come with a 2 year warranty.


  • 5
    Amazing products and team

    Posted by Mathieu COYOLA on 15th Jul 2022

    Dave is an excellent adviser - just received my fins size 44-46 and it fit perfectly with 3mm socks, I did had an other normal sock on top to simulate a 5mm and it still fit fine and bit small on the top but I guess I need to warm it up, I fully recommend

  • 5
    Fins4u pure evolution

    Posted by Bobby Burns on 1st Mar 2021

    really nice looking pair of fins and very light and reactive would reccomend