product 1.Ergonomic Design- Daily use when standing, walking, running, etc.. for peroneal tendon inflammation, genu valgum (knock knees) or varum (bow leggedness), arthritis, overpronation (inward roll foot), excess supination (outward roll of foot), and uneven foot alignment. These insoles can reduce stress and provide support for your feet. 2.Improved Posture- Wear medially to correct over-pronation counteracting knock knees and ankle eversion. Wear laterally to correct supination, preventing bow-leggedness and ankle inversion sprains. 3.Premium Material- Self-adhesive design can be washed, reusable and they are absolutely invisible. 4.Non Slip- Self adhesive design make the insoles stay in place all the time. Holds foot in place and prevents rubbing and slide, and eszy to clean with warm water and soap or use wet wipes to restore its sticky outside surface. 5.Fits most shoes- These orthotic Inserts are available for kids, men and women and fit many types of shoes, such as running shoes, sneakers, boots, leather shoes, high heels, sandals and so on.