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    The Monaco cotton trilby-style hat is made of cool calico and accented with our Lock & Co. house ribbon for added panache.

     A pure cotton lining and sweatband complete the look.

     To ensure the best fit, we recommend ordering a size up in this style.

    The Monaco trilby has a 6 cm brim and a 9.5 cm crown.

    Trimmed with 4.5 cm tri-tone grosgrain band and finished with a with a pure cotton lining and sweatband.

    Steam from a household kettle and a soft bristle hat brush will help remove dust and dirt. Brush the hat using short strokes.

    This hat is not designed to be worn in the rain. Should you get this style wet, it should be dried at room temperature, never on top of a radiator.

    Cotton and linen hats and caps should not be stored in direct sunlight.


    To ensure that you choose the perfect hat size, use our easy measuring-tape technique to get it just right.

    1. USE a soft tape measure.

    2. PLACE it around your head, positioned mid-forehead and just above the ears.

    3. MEASURE in centimetres or inches.

    4. FIND your size on the hat size chart.

    You can find our instructional video on how to measure your hat size here: Hat sizing

    mens hat care

    Every Lock & Co. hat purchased is carefully and expertly hand-prepared in our London shop by one of our Hatters, before being whisked out of our famous green front door.

    mens hat sizing

    Should you wish to speak to one of our Hatters please email us at shop@lockhatters.co.uk or via our contact us page – and one of our team will be in touch.