The Doria Slim
Free Gift


Size Guide
Light Grey / Brown Houndstooth
Bird's-Eye Tweed
Dark Purple Plaid
Brown Orange Check
Purple Check
Grey Plaid
Light Purple Plaid
Black Leather
Grey Tweed
Grey Herringbone
Mixed Tweed

Made in Italy, the Doria Slim is a contemporary twist on the classic flat cap with a paneled construction for a narrow profile. Fantastic cut and quality, this style is a JJ favorite!

Product of Italy

Size Chart

Using a tape measure, measure the widest part of your head (just above the ears and eyebrows) to the nearest 1/8th of an inch.

If you have not purchased a new hat recently, please remeasure your head, as sizes may change depending on hair style, weight loss/gain, and age.

Please also keep in mind that hat sizes vary depending on the manufacturer, so if you are unsure of which size to order, please contact us on and we’ll be happy to advise.

If you are in between hat sizes, try this cotton sizing to make adjustments at home.

For more information on stretching a hat, click here


size guide