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Mares X Stream Diving Fins


£136.95 £179.00

Item code: 310185



Choose size
  • UK 4 - 7 / Small 410019BNS BL £136.95

    Despatched immediately

  • X Small 410019BNXS BL £136.95

    Despatched immediately

  • UK 7 - 10 / Regular 410019BNR BL £136.95

    Out of stock

  • UK 10 - 13 / X Large 410019BNXL BL £136.95

    Out of stock

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  • Details
  • Reviews


Mares X Stream Diving Fins


£136.95 £179.00


The X-Stream fin from Mares is an adjustable, open footed scuba fin which is lightweight and comfortable with a new foot pocket and new blade construction for less turbulence in the water. The X-Stream is designed to provide a greater thrust throughout the water but with less effort and this is achieved by allowing the blade to maintain an optimal angle throughout the kicking cycle along with a channel thrust which, inspired by marine mammals, allows for great channelling of water compared to other fins of the same size.


The X Stream won the prestigious Red Dot product design award illustrating that it is a truly excellent product.


  • Riddled foot pockets prevent water from entering the space between the bootie and the foot pocket which would normally create a parachute type drag. The perforations also make the foot pocket soft and flexible and means there is no longer a suction which can make doffing cumbersome.
  • OPB or optimized pivoting blade allows the blade to maintain an optimal angle throughout your kicking cycle. This provides a constant thrust which keeps fatigue to a minimum and provides fluid movement through the water.
  • Superchannel. The blade has been designed with a large, flexible central super channel which propels water more efficiently down the fin blade instead of letting it spill over the sides for optimal performance and minimal diver effort.
  • Channel thrust is inspired by marine mammals and this new technology maximizes the channelling of water and moves a much greater amount of water compared to other fins. This results in greater thrusting power but with the same amount of effort.
  • ABS plus buckles allows quick opening and closing of the buckle even when wearing thick neoprene gloves. The double button release prevents the buckle from accidentally opening making it really user-friendly.
  • Open foot pocket provides maximum power and evenly distributes pressure over the foot to minimize tiredness. Internal ribbing inside the foot pocket improves fit and prevents foot suction and flexing of the foot pocket whilst transmitting great power to the blade.
  • Tri Material construction provides superior performance, maximum elasticity, great durability and a resistance to ageing.


Length : 630mm

Pair Weight : 1.6kg

Dive Type Scuba
Fin Heel Type Open Heel

Product ratings

10 May 2010

Really high grade well made fin as you would expect from Mares, they really have put some thought into these. They are also lightweight and are ideal for travel and tropical diving, best fins I've owned to date by far

30 July 2010

Excellent very light and powerful Can't tell your wearing any fins.

3 December 2010

They look great, and the length of the foot pocket is perfect for both the size 8s and the 10s. However, in the 10s (plus drysuit sock) they are very tight around the foot, at the entrance to the foot pocket, making it impossible to put my foot all t

20 June 2011

Excellent fin that gives superb finning power and the mesh foot pocket stops water accumulating. Unfortunately after just 1 month of use (45 dives) the central plastic section has separated from the more ridged black plastic edges! Disappointed that

8 July 2011

They feel very comfortable.

10 July 2011

I bought these fins after first trying them to replace my long loved Mares Avantiquattros. Very impressed with them and love them in warm water and cold water too. If you are going on holiday and luggage weight is an issue, these fins are the lightes

3 October 2011

A very lightweight but high performing fin. Very comfortable and easy to put on / release with new Mares buckle system. Perhaps a bit on the expensive side, but nonrtheless would recommend.

1 March 2012

Previously used Volo Fins which I found very floppy, these fins are much better giving a positive feel in the water. Only problem so far is that the foot pocket is not as pliant as the Volo and my dry suit boots will not go in properly, but they fit

9 November 2012

Great fins, delivery service great. The one thing that lets the fins down is the ABS+ buckles, both plastic spring arms on the strap adjustment catches on one of the fins broke the first time I tried to release them. Simply scuba immediately sent me

11 April 2013

Very easy to take off and on no suction on the boot ,very light, smooth kick action, very pleased with them

19 May 2013

Just used these fins in the sea for the first time i was very disappointed with them I got into a current and the fins had no affect and I had to work a lot harder to get moving than my old split fins. Also the grip on the sole is like standing on ic

21 January 2014

Received these about a week ago in the XL size, however were too big (purely my fault) so sent them back for a R size. Returned to me within a few days which is great! Absolutely love them, you get so much power for the effortless kicks and still get

24 January 2014

I owned these fins for around 6 months and did under 150 dives with them before the fell to bits. The initial impressions were good, they have good performance and excellent fit. However after a short while the two plastics on the fin blades started

1 February 2014

Just tried these out and have to say they are the best fins I have owned. They fit perfectly and I moved effortlessly in the water. Didn't encounter any problems when in currents either. Very easy to get on and off with no vacuum in the foot well

3 February 2014

I have yet to try the fins out however in all other parameters the exceed my expectations and I look forward to diving in them soon

27 August 2014

After watching many internet video footage and claims on the extreme mares it's safe to say they are good now I'm not technically minded when of comes to aerodynamics but they work well look good and are at a competitive price from simply scuba nu

15 April 2015

I bought this pair to replace a previous pair of the same fins. I have replaced like-for-like as I loved the previous pair, but beware - the reason for replacement was a failure of the fins themselves. After about three years of use, the material

6 September 2015

I bought a pair of these fins in 2012 to use on holiday and given how light they are I would only use them for holiday / warm water diving and not UK drysuit / lake / shore / boat diving. They are very light weight but excellent fins and, 3 years

20 February 2016

a stunning fin, especially for travel use. Light weight but strong. the holed foot pockets are great for getting off, and the fin straps are so easy to use. Never had a moments bother from these fins. hinge mechanism also helps to prevent cramping

6 July 2016

I bought a pair after seeing my Instructor with them. She has had her pair for years and dived all over the world with them. She loves them. the hinge on the sides also makes a handy carrying handle. I am an Assistant Instructor and can say they are

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