If your hat or cap is too small, you can often stretch it up one size. With this hat expander you can easily do it at home and thus avoid tight caps and hats. The wrong fit for a cap can cause headaches and discomfort. Sometimes it can be beneficial to stretch the cap slightly to its original size, especially if it has shrunk after long periods of laborious use.

To stretch your headgear, insert the tool into the sweatband and screw on the metal handle in the center of the tool. The hat enlarger can also be used when you are not using the hat to preserve the size of the hat by preventing shrinkage. Most materials such as wool, linen and cotton slowly shrink slightly when affected by heat, high humidity and physical activity.