Use a mild soap (never use detergent or solvents) and a damp sponge, wipe outside and inside the bag. Be sure to completely air dry the pack with zippers open/down before storing. Stubborn stains may require scrubbing with a soft bristle nylon brush. However, please note that excessive cleaning and heat may damage the protective fabric coating and is not recommended. Never clean your pack using a washer or dryer. Store your bags in a clean, dry place.