Royal Ascot at Lock & Co.: Discover
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Royal Ascot at Lock & Co.: Discover

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    • MEN'S HATS
    WOMEN'S HATS
    SPECIAL COLLECTIONS
    ACCESSORIES

    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

      MEN'S HATS
      WOMEN'S HATS
      SPECIAL COLLECTIONS
      ACCESSORIES

      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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      Gill Cashmere Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Gill Cashmere Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop55 cm56 cm57 cm58 cm60 cm61 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm62 cm63 cm64 cm
      Gill Cashmere Flat Cap
      £295.00
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      Gill Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Gill Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm
      Gill Tweed Flat Cap
      £225.00

      GUIDE TO Flat Caps

      GUIDE TO 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.

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      Gill Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Gill Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop55 cm56 cm57 cm58 cm59 cm61 cm62 cm63 cm64 cm56 cm57 cm58 cm59 cm61 cm62 cm63 cm
      Gill Flat Cap
      £225.00
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      Turnberry Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Turnberry Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm55 cm
      Turnberry Tweed Flat Cap
      £245.00
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      (0)
      Turnberry Plaid Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Turnberry Plaid Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop57 cm58 cm60 cm61 cm62 cm63 cm64 cm
      Turnberry Plaid Flat Cap
      £245.00
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      (0)
      Grosvenor Olive Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Grosvenor Olive Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm59 cm60 cm61 cm62 cm
      Grosvenor Olive Flat Cap
      £225.00
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      (0)
      Florida Linen Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Florida Linen Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm
      Florida Linen Flat Cap
      £155.00
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      (0)
      Cannes Linen Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Cannes Linen Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm58 cm59 cm60 cm61 cm62 cm
      Cannes Linen Flat Cap
      £175.00
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      The Auric Anniversary Edition - Flat Caps - Lock & Co. Hatters London UK
      The Auric Anniversary Edition - Flat Caps - Lock & Co. Hatters London UK
      Quick ShopSmallMediumLargeX-largeXX-large
      The Auric Anniversary Edition
      £245.00
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      (0)
      Grosvenor Check Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Grosvenor Check Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm58 cm59 cm60 cm61 cm62 cm
      Grosvenor Check Flat Cap
      £225.00
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      Oslo Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Oslo Tweed Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm63 cm64 cm
      Oslo Tweed Flat Cap
      £275.00
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      Escorial Wool Berkeley Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Escorial Wool Berkeley Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop56 cm57 cm58 cm59 cm60 cm61 cm
      Escorial Wool Berkeley Flat Cap
      £325.00
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      Blocked Felt Cap - Flat Caps - Lock & Co. Hatters London UK
      Blocked Felt Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick Shop55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm55 cm56 cm57 cm58 cm59 cm60 cm61 cm62 cm55 cm56 cm58 cm59 cm60 cm61 cm62 cm
      Blocked Felt Cap
      £275.00
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      Alberta Leather Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Alberta Leather Flat Cap - Flat Caps - Lock & Co. Hatters London UK
      Quick ShopSmallMediumLargeX-LargeXX-Large
      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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