Rubber Boot Buffer Spray - ONE / Clear Rubber Boot Buffer Spray Keep your Hunter Boots looking good as new with the Rubber Boot Spray. Developed to restore the natural shine to rubber boots, the liquid easily removes white marks known as 'bloom'. Blooming is a common process, and characterising of high quality natural rubber. Heat, methods of storage and prolonged wear can increase the chance of blooming, but white marks are easily wiped away with this smart spay. Ensure to remove excess debris from your boots before applying the spray and use a microfibre cloth to wipe the spray over the surface of the boot.