If you find that your hat isn't as snug as you'd like it to be, this hat filler will be your best friend! The hat filler is made out of foam cushioning, while the adhesive filler sticks to the inside of your hat (the wool or the straw) and creates a smaller fit. If you need your hat to fit only a little bit smaller, just use the filler partially! 

Reduces hat size by approximately 1 to 2.5 cm.

Please note: The filler is applied to the inside of the hat crown, under the sweatband lining.