Open the Velcro end of the pad, remove the magnets &  lay them flat. (DO NOT WASH THE MAGNETS!) Wash the sleeve & hang it dry. Once the sleeve is dry, reinsert the magnets making sure the light side (North Pole) of the magnet pad aligns with the tag (North Pole Polarity) on the outside of the sleeve. Fold the Velcro to the inside to secure the magnetic pad inside.