For all of our sandal products, we recommend using luke warm water and a light detergent. You can use a soft bristled tooth brush or something similar to scrub along the foot bed if needed. Rinse with cool/lukewarm water, and let air dry. We recommend a warm lit ventilated area for this so they'll dry faster. For Comfys, we recommend brushing from time to time as they dry, to keep the fibers in a uniform direction.