Sierra Beret

The Sierra beret is the perfect Spring or Summer couture statement beret or percher hat for women.

Available in purple, ivory, and pink and crafted from parasisal straw with a hand-shaped bow and mini vintage flower detailing. 

Sierra Beret
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This is a free-size head fitting.  Base: 18 cm width x 20 cm length
Bow: 16 cm width x 32 cm length


Couture hats are best stored in a hat box, away from direct sunlight.


Parasisal straw beret with hand-shaped bow and mini vintage flower detailing. Secured with elastic at the nape and a comb anchor this piece in place.

Styling & Fitting

 The Sierra is an ideal accessory for the races, Royal Ascot, or for a wedding guest look. Should you wish to order this piece in another colour please get in touch with our Stylist at or +44 (0) 207 930 8874.

Please note that all couture pieces come with a complementary Lock & Co. hat box.

How to measure your hat size. Read More

Hat Size Chart

Women'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.

If you would like to speak with one of our Stylists, please email us at or use our contact form and one of our team will contact you.


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

Beret or Percher
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.
Parasisal Straw
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.
Comb & Elastic Fastening
Every part of a hat has its purpose. Discover the features or aesthetic of each hat and how it will specifically enhance your hat-wearing experience.