The JJ Slim
Free Gift

JJ Hat Center

Size Guide
Charcoal Windowpane
Taupe Plaid
Charcoal Red Plaid
Blue Herringbone Plaid
Tan Herringbone Plaid
Green Herringbone
Light Grey Herringbone Plaid

The JJ Slim, as the name suggests, is a fitted ivy cap. Handcrafted in Poland using 100% wool, these caps are both stylish and affordable, making this a staple choice for your winter wardrobe.

80% Wool / 20% Polyester 
Handcrafted in Poland

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