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Choosing the right size of flip up sunglasses

Selecting the right size of flip up sunglasses is simple. Just follow these steps.

    How to measure your glasses

    • The key measurements you will need to take (in millimetres) are:

    • Width and height across the centre of one of the lenses
    • Total width of your spectacles, measured from the outside of one lens to the outer edge of the other lens

    How we measure our flip up lens sizes

    Ideally you should select a shape and size of flip up sunglasses that gives a small overlap when clipped onto your glasses, as illustrated below.

    How flip up lenses are measured


    Note: Click this link if you were looking for information on sizing of spring-fit or rimless clip on sunglasses.