Do you have a favorite hat who's crown has begun to tear? Or do you have a hat you would wish to protect from wear and tear? Try our crown repair strips for repairing and protecting the crowns of straw hats. The strips are 100% acid-free and easy to apply, just dip the strip in water and mold it to the shape of your crown. Once the strip dries, it will harden and create a permanent patch, hiding and preventing any further tear. If you have a large tear between 1-2 inches, use the D-strip. The d-strip is slightly harder to apply. For most small tears and general protection, the D-strip is sufficient and easier to use.