Bloc Titan Multi X631 White with 4 Lens System

From the mountains to the ocean and anything in between, Titans are great modern shades for all sorts of uses. This version comes with four interchangeable lenses.   


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  • Bloc Titan Multi X631 White with 4 Lens System
  • £60.00
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Bloc Titan Multi X631 White with 4 Lens System Video


With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

The Current Estimated Delivery Dates for Bloc Titan Multi X631 White with 4 Lens System is

Bloc Titan Multi X631 White with 4 Lens System Description

  • Brand : Bloc
  • Season : Not Applicable
  • Code : BLO TITMW
  • Packaged Weight : 0.2KG
  • Distinctly sporty looking shades that will put others in the shade! Four interchangeable lenses are included.  
    The main lens is XTR Karbon8 Vermillion, a Category 3 polarised optical Class One lens which provides maximum protection against UVA/UVB and harmful blue light up to 400nm and is distortion free and impact resistant. Also included are clear, orange and HDL lenses.
    The frame is Karbon TX™ bi-core injected and is flexible, durable, lightweight and designed for comfort, fit and performance. The sports hinge provides both strength and performance. The fully adjustable hypoallergenic nose pads and the non-slip hypoallergenic temple tips are designed for comfort and fit.
    • High definition VE5 Vermilion Category 3 lens has a tint which helps with contrast against blue and green light and is ideally suited for medium to bright light conditions. It reduces glare, retains natural colour balance, enhances definition and can reduce eye fatigue.
    • Clear Category 0 lens is ideal for night or low light conditions and protects against insects, dust and wind.
    • Orange Category 1 lens is a light enhancement lens for low light conditions.
    • HDL Category 1 high definition lens improves contrast and gives excellent definition in low light.
    • TTF adjustable nose/pads.
    • Sports hinges.
    • Easy, quick change lens system (alternative lenses are available - please contact us)
    • Lightweight BX1000 core injected temple tips.
    • Suitable for medium to large faces.
    • Anti Glare Polarised lenses (P630S single lens system). 
    • Tested to BS EN ISO 12312-1:2013.

    Buyers Guide

    Category        Usage
    0 Not really a category - transmits 100% of visible light. Protection against grit and ice only. 
    1 43% - 80% visible light transmited.Suitable for use in cloudy conditions with virtually no direct sunlight eg blizzards and whiteouts 
    2 18% - 43% visible light transmitted. Suitable for use as general sunglasses and in cloudy conditions in the mountains, but not in direct sunlight in mountain areas where there will be a lot of reflection off snow and ice.
    3* 8% - 18% visible light transmitted. Suitable for Alpine and Himalayan mountaineering for most uses, but for prolonged exposure at high altitude Category 4 is recommended.
    4* 3% - 8% visible light transmitted. For prolonged exposure at high altitude and especially if you have weak eyes. Will be found too dark for everyday use and should not be used for driving a car.

    *Categories 3 and 4 are the only categories suitable for Alpine and Greater Ranges mountaineering - however, just because the lenses are suitable does not mean that the design of the glasses is.

    Sizing Information

    Technical Information

    Bloc Titan Multi X631 White with 4 Lens System
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