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Mares X-Stream Fins

Size Guide
Mares Fin Size Chart

Use this size guide to find the most appropriate size for your Mares Fins. Please contact us if you require further assistance.

Open Heel Fins

Fin Size UK Shoe Size EU Shoe Size
Small 5-7 38-41
Medium/Regular 8-8.5 42-43
X-Large 9.5-10.5 44-45


Colour / Size
White / XS 3 In Stock
White / S 3-4 business days until despatch
White / R 3 In Stock
White / XL 1 In Stock
Black / XS 3-4 business days until despatch
Black / S 1 In Stock
Black / R 1 In Stock
Black / XL 3-4 business days until despatch
Pink / XS 1 In Stock
Pink / S 2 In Stock
Pink / R 3-4 business days until despatch
Red / XS 1 In Stock
Red / S 1 In Stock
Red / R 3 In Stock
Red / XL 1 In Stock
Yellow / XS 3-4 business days until despatch
Yellow / S 1 In Stock
Yellow / R 3-4 business days until despatch
Yellow / XL 1 In Stock
Blue / XS 1 In Stock
Blue / S 1 In Stock
Blue / R 2 In Stock
Blue / XL 1 In Stock

Mares X-Stream Fins offer comfort combined with exceptional efficiency.

    This lightweight design is the result of sixty years of product development by Mares with the new, innovative Riddled Foot Pocket which eliminates parachute effect.

    The X-stream is truly a leap into the future, and forever changes how we envision the creation of a fin. With groundbreaking Channel Thrust and next generation OPB Technologies it is truly a unique product.

    More than 2 years of resources, experiments, testing and four Mares patents all concentrated into one product.

    • ABS plus buckles and perforated pull tab
    • Riddled foot pocket avoids “parachute effect”
    • Next generation OPB
    • Tri-material blade construction reduces turbulence
    • Channel thrust technology



    If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!

    Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Too easy!

    For step-by-step instructions click here


    Need it tomorrow?

    We offer next day delivery.

    Not ready to commit

    30 day returns.

    Not enough Money?

    Financing available.

    Let's help our oceans

    1% goes to Sea-Changers