Usage: 1 Put the insole into the shoe with the soft face up.

              2 take it out after use and the drying effect is better.

              3 the most effective way to use it is to use the two pairs alternately, which is convenient for changing and washing.

Note: This product can be washed and dried, but it should not be soaked in water for a long time. Take it out every night after use and air dry.