Knitted nylon padded hat sizers size the hat down by 1/2 to a full size.
The 8 1/2" long contoured hat sizer makes for a perfect fit inside the front of your hat. The padded cushion is comfortable and feels great upon your forehead.
Easy to use, just remove the backing and stick the sizer inside the crown. Disposable, just remove the old one and replace with a new one.