The main body needs no particular care. You can wash it under running water with soap or in a washing machine at 40°C maximum temperature.The cork and leather insole can absorb up to 67% of humidity which they evacuate naturally. If they are wet, dry them at room temperature (NEVER USE A SOURCE OF HEAT, it could affect the leather). The insoles are 99% made of cork for a maximum hygiene and comfort. At the first use the insoles may leave some cork particles inside the main body. That is normal and alters in nothing their performance. For an optimised lifespan, we recommend the use of two pairs of removable insoles ; you can purchase a pair of insoles, in the colour of your choice at the iguaneye's Shop.