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Oasis is a unique one-off piece; a luxurious couture tulle-draped wire frame conical-shaped hat covered with rare vintage poppies, and featuring oversized dupion silk under-chin ties.

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Free-size head fitting. Hat: 44 cm width x 23 cm height. Chin ties: 15 cm wide x 100 cm long


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


Tulle-draped wire frame coolie hat, covered with vintage poppies, and featuring oversized dupion silk under-chin ties

Styling & Fitting

It is a perfect statement piece for the summer races at Royal Ascot or to wear as a guest to a wedding. This is a free-size head fitting and attaches with elastic at the nape of the neck and comb to anchor in place. 

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

Conical-shaped Hat
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.
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.
Vintage Flowers One-off Piece
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.


We are delighted to see the Oasis featured in the March 2023 issue of Country Life and the April 2023 issue of Tatler.