- Made of foam cushioning, the adhesive filler sticks to the inside of your hat (the wool OR straw) for a better & smaller fit.
- Reduces hat size by approximately 1-2.5 cm.
- Can be used the whole way around your hat or just partially, if you are only wanting to reduce your hat size by a small amount.
- Roll is 60 cm / 23.6 inches in length .