Performance Pro has comfort from inside. Propet Preferred orthotic insoles are designed specifically to improve foot function, reduce pain caused by poor foot biomechanics, and to prevent further problems or injuries in the future. The molded universal arch support provides comfort and support for all arch heights. Memory foam layer instantly molds to the shape of your foot, providing a customized fit, as well as rebound and cushioning with every step. Soft gel in the heel area absorbs shock and provides extra cushion right where it counts. Soft, breathable nylex sock liner with a perforated forefoot, keeps feet cool and dry. Sock liner is anti-microbial to fight the growth of odor causing bacteria and fungus. This is the ideal insole for those who spend long hours working on hard surfaces. Excellent solution for those looking for extra cushion due to pain, trauma,or repetitive impact in the heel area.