To clean, wipe the inner fabric of your SmartGoggles with a non-abrasive, lint-free cloth. Lightly dampen a non-abrasive, lint-free cloth with water or an alcohol-based solution to clean if necessary. Dry SmartGoggles with a non-abrasive, lint-free cloth. SmartGoggles are NOT waterproof or machine washable. Do not allow excess liquids or water to enter the product.