If you are suffering from any of these issues, these insoles are just what you need! * Genu valgum (knock knees) * Genu varum (bowlegged-ness) * Osteoarthritis knee pain * Pronation (inward roll of foot) * Supination (outward roll of foot) * Posture problems * And other issues caused by uneven foot alignment * They can be either varus(foot turning inward) or valgus(foot turning outward), supporting either side of the foot as needed. * You can use them inside almost any kind of shoe. Use all day while standing, walking, etc.