Gill Check Flat Cap

This extremely elegant flat cap is the classic companion for your off-duty autumn and winter attire. 

Our soft and luxurious Gill Check flat cap is woven from wool and is one of our most popular styles. Clean and classic modern lines combine with an assured, flattering fit so that the cap complements any outfit, bringing confidence in the city or the countryside.

Gill Check Flat Cap
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  • Peak length: 5.5 cm
  • Diameter: 26 cm

Steam from a household kettle and a hard bristle hat brush will help banish any dust and dirt from the tweed or cashmere.

Dry a tweed or cashmere cap or hat by shaking off the water and leave at room temperature.


The fully lined Gill Check flat cap is crafted from 100% UK natural undyed wool and is finished in the EU.

Styling & Fitting

Flat caps are designed to be worn centrally on the head and not cocked to the side.  

How to measure your hat size. Read More

Hat Size Chart

Men's Hat Styling

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.

To find your perfect hat size, we suggest booking a virtual appointment for a consultation with one of our hatters here.


At Lock & Co., we sell the finest hats and caps. To achieve this, we pay particular attention to specific hat characteristics - style, fit, durability, and materials. We share these characteristics with you for each hat to help you decide on the perfect choice.

Find Your Size and Style

Flat Cap
At Lock & Co. we offer a wide selection of styles of hats. What defines a hat style is its form: overall shape, height/shape of the crown, width of the brim, and material type. These define a style e.g., Fedora, Trilby, Panama, Cloche, Tweed cap etc.
100% UK Wool
Lock & Co. hats are made of the finest quality material. These can range from exclusive Escorial wool, Scottish Tweed, and cashmere to Toquilla straw for our Panama hat.
Standard Shape
Different styles of hats have different shapes to them, including classic, fuller, narrow, and standard fits, or with an oversized or a wide brim or sporting a particular shape - bell, birdcage, etc.