Mares X-Stream Fins

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The Mares X-Stream offer extreme comfort and extreme efficiency for the most demanding divers out there.

Free UK Delivery

The Mares X-Stream offer extreme comfort and extreme efficiency for the most demanding divers out there.


Mares X-Stream Fins

The Mares X-Stream offer extreme comfort and extreme efficiency for the most demanding divers out there. The high performance of X-Stream coupled with the lightweight design by Mares is a result of sixty passionate years in the diving industry.

Take a true leap into the future of diving and experience changes which are bound to form the future of diving footwear. Mares spent more than two years researching and a further four testing out patents before creating this one special, unique diving fin.

The features include riddled foot pocket, with perforations to prevent water flow from slowing you down. Furthermore the openings eliminate any suction effect, making doffing easier. Optimized Pivoting Blade also allows the blade to maintain an optimal angle throughout the kicking cycle, reducing strain on ankles and maximising thrust. Soft longitudinal inserts or channel thrusters move a greater amount of water resulting in more thrust for the same effort. Made from three specific materials for maximum elasticity, high durability and resistance to wear and aging.

Key Benefits

  • Easy Donning and Doffing The X-Stream fin comes with buckles and a perforated pull tab to make putting them on and taking them off as easy as possible.
  • Enhanced Thrust The blade of the fin scoops water and channels it to the tip to help give even more thrust exactly when you need it.
  • Riddled Foot Pocket The riddled foot pocket has perforations to prevent water flow from slowing you down while also eliminating any suction effect.
  • Optimised Pivoting Blade The pivoting blade allows itself to maintain an optimal angle throughout the kicking cycle to reduce stress on the body while maximising thrust and power.
  • Flexible Comprised from three materials, the fin provides a high level of elasticity and flexibility to ensure that it provides maximum output.
  • Durable The fin is also highly durable and has a high resistance to wear and aging to make it a great all rounder.

Who is the Mares X-Stream Fin For?

If you’re looking for a tried and tested, quality fin you can trust then look no further than the Mares X-Stream Fin. Comprised of flexible and durable material, this fin provides outstanding performance in the water while also optimising comfort. Everything about this fin oozes quality and is ideal if that is what you’re looking for.

Who are Mares?

Since being founded in Italy in 1949, Mares has become a worldwide leader in the manufacturing and distribution of state-of-the-art diving equipment, and continually sets new industry standards. They continue to invest in innovation, research and expertise almost 70 years after they were founded and are an industry leader that can be trusted to be quality.

Size XS S R XL
Fit (EU) 34/37 37/41 41/44 44/48
Blade* 34.5 cm / 13.6 in 36 cm / 14.2 in 37 cm / 14.6 in 38 cm / 15in

*From end of footpocket to end of blade

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We will take every effort to get you goods to you as efficiently and effectively as possible. All orders placed before 3pm will be shipped on the day of ordering subject to payment authorization and item availability.

Any items which are out of stock will be shipped as soon as they become available. If this causes a delay in your delivery, you will be notified and your order dispatched as soon as possible. If any items are unavailable, you will be contacted and offered a replacement or refund.

UK Delivery

If your order total is under £45 then you can choose one of:

  • Royal Mail Tracked - £3.95
    (1-3 Working Days)
  • DPD Next Day - £4.95
    (Guaranteed Next Working Day + 1 Hour Delivery Window)

If your order total is over £45 then you can choose

  • Standard Delivery - FREE

Please be aware that the prices above are for areas classed as "UK Mainland" by DPD which does NOT include offshore islands, Scottish highlands or Northern Ireland.

Non-UK Delivery

Our website has a comprehensive postage system which takes into account the weight of your delivery and the destination address - to get a quote for your order please add the products you'd like to buy to your basket, go to the basket page and fill in the "Estimate Shipping & Tax" section to get the price.

BFPO Addresses

This shipping method is available for British Forces Posted Overseas and addresses only. Shipping is as with all other UK mailing but please check to see that the size and weight of your order does not exceed maximums for your BFPO destination number by checking with the BFPO website.

Please note that once we have shipped the item and handed over to the BFPO service we have fulfilled our contract and delivery responsibility. All queries and problems with delivery must be taken up by yourself with BFPO and any claims must be handled between yourself and them.

Restricted Products

Please be aware that some products have restrictions on which countries we can send them to. Please enquire ahead of time if you require an order dispatched outside the EU and we can advise.

VAT Exempt

If this applies to you, the price you will pay for the goods will automatically be adjusted to remove the VAT element - you MUST choose the correct country on checkout for this to apply. We CANNOT refund the VAT once the order is completed.

You can also avoid paying VAT if you are having your goods sent to you in the UK, but are taking the goods abroad permanently within 3 months of making the purchase. You will have to pay the VAT with your order and reclaim the tax per relevant regulations - please be advised we cannot help with this process.


We stock the vast majority of products listed on our website in our Whitley Bay superstore and warehouse and these products are available for same day dispatch & next day delivery.

Due to the huge quantity of products we stock, we offer the ability to backorder products which have gone out of stock and less popular products which we don't carry stock of.

Depending on the brand these backorder products can take anywhere between 1 and 10 days to arrive into stock. We estimate 3-5 working days on average but please be aware that products from Mares and Scubapro are shipped from Italy & Germany respectively so can take a little longer.

As always if you aren't sure or want a more accurate estimate just give our team a call or email!


You can return any product that is in an UNOPENED, RE-SALEABLE condition within 30 days as long as it is not marked as clearance. Please contact us before doing this so we can confirm this ahead of time - we recommend using a recorded delivery service for any returns as you will be responsible for ensuring it reaches us.

Please get in touch to confirm a return by email or phone before sending anything back. When sending a return it is important that you include:

  • Your order number
  • Your name & a contact telephone number
  • The reason for return

We will try and get your return processed as quickly as possible but if you don't send this information it can delay the return.


If you have ordered something and it doesn't fit then we can exchange for a more suitable size, stock permitting, but you will have to pay the return postage.


Our customers have the right to cancel their orders within 14 days unless their order has been dispatched. After the order has been dispatched, it is the customers responsibility to return the item in a saleable condition and receieve either a full or partial refund.

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