Competition Monofin 3 Fiberglass
Monofin CM3 detailed ilustration
Black CM3 Monofin with silver lines
Competition Monofin 3 Fiberglass
New CM3 Fiberglass Monofin shot underwater
Black CM3 Monofin being used by Alexey Molchanov underwater in a pool. Shot from the back
Black CM3 Monofin being used by Alexey Molchanov underwater in a pool. Shot from the side.
Competition Monofin 3 Fiberglass
Competition Monofin 3 Fiberglass

Competition Monofin 3 Fiberglass

Regular price $820.00

Since Molchanovs began monofin production in 2005, the evolution of the design of the monofin has gone through many stages. In 2010, we pioneered transverse stability in bifins and monofins, allowing for more stability and minimizing useless bending of the blade during the kick cycle. Over the following years, we have experimented with different aspects of the monofin: changing the number of layers at the base of the blade, experimenting with softer blade tips and the general shape of the blade, and incorporating changes in the foot pockets that enhance the blade’s performance.

When you invest in a Molchanovs monofin, you are investing in technology that is specifically designed for freediving performance. All of our monofins are constructed by freediving engineers and craftspersons, tested extensively by top athletes, and used in numerous national and world record performances. Whether you are using our monofins for business or for pleasure, we guarantee that your underwater experience with them will be unforgettable.


"Easily the best Monofin we've ever made!"

- Alexey Molchanov, World Record Holder CWT

Check out our article on "The History Behind the Legendary Molchanovs Monofin" here!

The Molchanovs Competition Monofin 3 (Molchanovs CM3 for short) will be the monofin used by the best competitive freedivers around the world. Developed by world champion Alexey Molchanov and team over two years and tested by the world’s best athletes, our monofin, designed by freedivers for freedivers, provides the highest performance and efficiency for your dives.

For this generation of Molchanovs Monofin in addition to the new look we have made several key improvements.

Firstly is the redesigned of our revolutionary Soft Tip Blade. Over the last two years we have developed a new blade layering design that retains the feel you expect from a Molchanovs Monofin but improves its power and longterm durability.

Secondly is the new composition and placement of the footpockets coupled with  a new cutout in the blade between the footpockets (together the Quick-Transition Blade design). These changes both reduce resistance and drag during the kick-phase of the stroke and allows the blade to quickly and efficiently transition between the strokes. These changes also have decreased slightly the overall length of the monofin which allows for more precise control with greater efficiency.

Thirdly is the redesign of the protective blade stripes which now have a lower profile and are longer to provide superior protection.

Please note: Our masters individually craft our monofin blades by hand. In order to make the shallowest cut possible to avoid damaging the integrity of the blade, the hand-layering process may introduce small imperfections along the edges of the layers. These imperfections do not affect your performance — they are a sign that your blade will be both durable and is of the highest quality. Embrace the imperfections!

Our monofin blade stiffness is based on 3 stiffness flexes (Soft, Medium, and Hard) and two blade sizes (Small and Regular). Size Small blades are slightly narrower, shorter and softer than size Regular blades although the difference is quite small (2 centimeters of length and width). As an example, a Blade Stiffness Soft - Small is a Soft flex blade of size Small and is slightly narrower, shorter and softer than a Blade Stiffness Soft - Regular.
Both blade sizes Small and Regular are appropriate for men and women. If you are on the smaller and lighter side or prefer a more agile monofin, a size Small blade is for you. On the other hand if you are on the taller or heavier side or prefer a more powerful monofin, go with a size Regular blade. 
Click here for more info on blade stiffness.
Made from highest quality materials
  • Handcrafted from start to finish
  • Premium 100% UHC fiberglass blades
  • Heavy-duty, wear-resistant, UV-resistant footpockets
  • Comfort Lining inside footpockets
  • Hand-layered for superb response and feel
Technical specifications
  • Blade Angle: 27°
  • Blade Length: 'Small' blade - 46 cm, 'Regular' blade - 48 cm
  • Blade Width: 'Small' blade - 68 cm, 'Regular' blade - 70 cm
  • Weight: 2.5 kg

Our fins are produced with the highest quality materials by the most qualified craftsmen by hand for you in our production factories in Russia. This process guarantees our outstanding quality and takes time.

The production time for special orders takes approximately 5 to 6 weeks, depending on the volume of orders. Standard configurations may be ready to be shipped as you order depending on availability. 

  • Wash off salt and keep the fins away from the strong sun and heat.
  • Do not step on your monofin or place heavy equipment on it.
  • We recommend applying a thin layer of silicone grease to your feet when using your fins without socks to avoid blisters and friction burns.

Comes with a 1 year limited warranty.

Footpocket Sizing 

Follow Measuring Guide Below

EU Size Length / Circumference (cm)
35 22/21
36 23/22
37 24/22
38 24/23
39 25/23
40 25.5/23.5
41 26/24
42 27/24
43 28/25
44 29/26
45 29.5/28.5


Custom Footpocket Measuring Guide

Desired Fit Guide

The desired fit determines the tightness of the foot pockets. Three options are available:
Comfort: Ideal for recreational dives and long training sessions. If you intend to put them on for long periods of time, choose this option. Comfortable for about 2 hours of wear.
Normal: A medium tightness, ideal for focused training sessions and competitions. Comfortable for about 1 hour of wear.
Sport: The tightest fit available, maximizing power transfer, especially for competition dives. Suitable for about 30 minutes of wear.

Estimated Delivery Time

Your order is usually processed within 3 business days. An email will be sent to you once your order is processed. Please check your tracking number regularly.

COVID-19 Situation: Please note that due to COVID-19, postal services have been affected, and courier prices has increased. To serve you better, we have sourced the lowest cost shipping possible during these times. However circumstances means that sometimes deliveries take longer than usual. You can see the affected countries and updates on how this affects our shipping times  here:

Return Policy

We have a 30 days return policy for all items. If you are not 100% satisfied with your item(s), return it within 30 days of receiving your order in salable condition for a refund or exchange. Please return your item(s) in the original packaging.

Refund Policy

Gift cards, sale items and custom-made wetsuits are non-refundable. Custom-made fins (monofin and bifins) are partially refundable depending on the degree of customization. Please ensure our items are in original condition before you request for a refund. Damaged items, items with missing parts and items returned after 30 days from delivery are non/partially refundable. Shipping cost is non-refundable.

Once your refund is approved, it takes up to 5 business days for the refund to be processed and credited into your bank account. Please contact your bank if you haven’t receive your refund within 5 business days.


You can check our full FAQ list for more information.

If you have any more questions, feel free to contact us at and you will receive a reply within 1-2 days. If you have not heard back from us after 2 days, please check your spam folder.

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