Explore our Royal Ascot Collection of Hats
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Explore our Royal Ascot Collection of Hats

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    This Royal Ascot season, there's only one destination for your silk top hat experience — No. 6 St James’s Street, the ‘Home of Hats’. Read More

    INSIDE LOCK & CO.

    King Charles III

    A Royal Warrant of Appointment to King Charles III. Read More.

    Lock & Co. Hat Care

    Lock & Co.'s hat-grooming guidance will keep your hat looking as good as the day you bought it. Read More

    HAT SIZING
    PORK PIE STRAW HAT WITH A TEXTURED BLUE/GREEN COTTON BAND

    Introducing HAttIe, your personal AI styler, trained with the expertise of our Master Hatters and Stylists. HAttIe is here to help you select the perfect hat style for you. Meet HAttIe.

    Raffia Wide Brim Hat With Textured Pink Band and Bow

    Discover the secret of looking effortlessly stylish - Use Lock & Co.'s simple guide to select the perfect hat for you. Read More

    EDITORIAL

    With Royal Ascot fast approaching, Lock & Co. has created a handy guide to answer your top questions about hats, headpieces, and top hats for 2025. Read More

    Why is it called a Bowler Hat? Read More

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    Grosvenor Green Check Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Green Check Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Green Check Flat Cap
    £225.00
    Gill Blue Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Blue Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Blue Flat Cap
    £225.00

    GUIDE TO Men's Flat Caps

    GUIDE TO Men's Flat Caps

    The flat cap, also referred to as the "driving cap," is a perennial favourite at Lock & Co. Hatters. 

    How to wear a flat cap?

    Flat caps are made to be worn centrally on the head, rather than cocked to one side. A well-fitting flat cap will hug the back of the head nicely and not feel too loose elsewhere.
    If you don't already know your head size, wrap a soft tape measure around your head, 2 cm above the ears and across the middle of your forehead. The size of the flat cap you require will be determined by the number you receive (whether in centimetres or inches). If you are in between sizes we recommend you size up.

    Rolling instructions:

    Lock & Co. flat caps are designed to be rolled. Place the cap on a flat surface and tuck the peak under the cap band, rolling the cap in half.

    Drifter Striped Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Drifter Striped Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Drifter Striped Flat Cap
    £225.00
    Tom Panelled Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Tom Panelled Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Tom Panelled Cap
    £225.00
    Florida Linen Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Florida Linen Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Florida Linen Flat Cap
    £155.00
    Cannes Linen Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Cannes Linen Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Cannes Linen Flat Cap
    £175.00
    Grosvenor Olive Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Olive Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Olive Flat Cap
    £225.00
    Grosvenor Dark Brown Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Dark Brown Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Dark Brown Flat Cap
    £225.00
    Turnberry Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Turnberry Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Turnberry Tweed Flat Cap
    £245.00
    Gill Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Tweed Flat Cap
    £225.00
    Gill Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Flat Cap
    £225.00
    The Auric Anniversary Edition - Men's Flat Caps - Lock & Co. Hatters London UK
    The Auric Anniversary Edition - Men's Flat Caps - Lock & Co. Hatters London UK
    The Auric Anniversary Edition
    £245.00
    Gill Cashmere Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Cashmere Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Cashmere Flat Cap
    £295.00
    Lynton Glen Check Grey Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Lynton Glen Check Grey Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Lynton Glen Check Grey Flat Cap
    £275.00
    The William Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    The William Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    The William Flat Cap
    £495.00
    Highgrove Estate Brown Check Grosvenor Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Highgrove Estate Brown Check Grosvenor Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    LIMITED EDITION
    Highgrove Estate Brown Check Grosvenor Cap
    £365.00
    Highgrove Estate Green Check Grosvenor Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Highgrove Estate Green Check Grosvenor Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    LIMITED EDITION
    Highgrove Estate Green Check Grosvenor Cap
    £365.00
    Gill Windowpane Brown Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Windowpane Brown Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Gill Windowpane Brown Flat Cap
    £225.00
    Turnberry Plaid Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Turnberry Plaid Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Turnberry Plaid Flat Cap
    £245.00
    Escorial Wool Berkeley Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Escorial Wool Berkeley Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Escorial Wool Berkeley Flat Cap
    £325.00
    Escorial Wool Grosvenor Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Escorial Wool Grosvenor Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Escorial Wool Grosvenor Flat Cap
    £275.00
    Oslo Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Oslo Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Oslo Tweed Flat Cap
    £275.00
    Grosvenor Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Tweed Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Tweed Flat Cap
    £225.00
    Grosvenor Check Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Check Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Grosvenor Check Flat Cap
    £225.00
    Blocked Felt Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Blocked Felt Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Blocked Felt Cap
    £275.00
    Alberta Leather Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Alberta Leather Flat Cap - Men's Flat Caps - Lock & Co. Hatters London UK
    Alberta Leather Flat Cap
    £675.00

    FAQs

    What makes a flat cap a flat cap?

    A flat cap is a rounded cap with a stiffened but malleable peak, and would typically be made from a singular piece of cloth (most commonly wool, tweed, or cotton). At Lock and Co. we are known for our array of flat caps of various styles and fabrics, such as linen, Escorial wool, and cashmere.

    How to roll your flat cap?

    Tweed hats by Lock & Co. are designed to be rolled for easy travel.  Place the cap on a flat surface and roll the cap in half, tucking the peak under the cap band. Roll up your hat and store it in a hat tube or in your luggage. When you arrive at your destination, always unroll and reshape your cap to bring it back to its original shape

    How to wear a flat cap

    Flat caps are designed to be worn centrally on the head and not cocked to the side. To find out more, read our article on flat caps.

    How should a flat cap fit?

    A good fitting flat cap will mean the cap hugs the back of the head nicely and does not feel too loose elsewhere.

    What size do you recommend I purchase in caps? Do I get the same size as a fedora/trilby I already have?

    We do recommend going up a size in a flat cap. The peak of a cap should be 'easy' and the overall fit should be snug on the back of the head.

    FAQs

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