VTG Bollman Hat Co. Importina Black Wool Hat Size 7 22 Inches

22 inches in the inside rim. I have included the hat size chart in pictures The VTG Bollman Hat Co. Importina Black Wool Hat is a vintage accessory perfect for casual occasions. Made of 100% wool in the United States during the 1970s, this one-size hat features a classic black color and timeless vintage style. With its original design and top-notch quality, this hat is a must-have for any woman looking to add a touch of retro charm to her outfit.