Since most of the designs that we selected are made from simple cotton, washing them is simple and easy. Due to the fact that they have rubber tips on the bottom of the soles, they are as simple as your other basic pairs. While you will be able to throw them into the washing machine (be sure to turn them inside out), you will have to skip on the dryer and hang them up to dry. High heats can cause the tacky nubs on the bottom to shrink, lose their tackiness, or even fall off completely.