ASICS Walking Insoles [Purpose] Walking, for Women [Product Name] Orthotic Inner Sole O-leg Type [Model Number] WPZ207 [Color] Gray [Quality Indication] Main Body...Synthetic Resin, Surface...Artificial Leather [Size] L (24.5-25.0 cm) [Retail Price] 3,300 yen (tax included) [Country of Origin] Made in China O-leg Type...This insole is recommended for those who tend to put stress on the inside of their knees. It shifts the center of gravity, which is on the outside of the foot when standing, to the center, reducing the burden on the outside of the foot. *Although this is a new, unused item, the back side has slightly discolored due to long-term storage (see image). There is no problem with the quality, but please refrain from purchasing if you are concerned. Thank you. #ASICS Walking #O-leg