Carbon Lab Spot Cleaner. The block to remove even the smallest spots from your sneakers. When cleaning sneakers, always start without water and wet cleaning products. The Spot Cleaner has been specially developed in the Collonil lab to clean suede stains without moisture. The cleaning block is part of the Carbon Lab Dry Cleaning process. You can easily remove stains by rubbing the block in a focused way. The handy block is constantly renewing itself because it is slowly crumbling. Why Collonil Carbon Lab? Because Outsole thinks it’s important that you go for quality and not for hype. Collonil has been the market leader in shoe care for years and thoroughly tests all its products on different sneakers. The ecological footprint is concerned as well: Carbon Lab is based on safe organic ingredients.