You can use the Saphir's Gommadin Suede & Nubuck Eraser Block to remove spot stains, salt and watermarks, and other localised soiling from footwear made of Suede and Nubuck.
The colour and finish of your shoes will not alter from the original.
How to Use:
Use as you would a pencil eraser, rubbing the stain back and forth.
Once the stain has been removed, use a Suede/Nubuck Brush to restore the nap of the leather and remove any residue from the Gommadin Eraser.