I bought a bulk pack online and am selling some of it. When you feel fatigue or pain in your feet, changing your insoles can improve your performance. Adding cushioning to insoles that gradually wear down can reduce the strain on your knees and ankles. Also, I'm concerned about odor, so I change them frequently. The size is S (fits 22.0 cm - 24.0 cm). There's a sheet included, so remove the insole you're currently using, match the size, and cut to fit. Arch support parts are available if needed. For reference, I've included photos of the ones I've used. The product for sale is new, retail price is 1,980 yen including tax. This is a set of two pairs, but if you only want one pair, please leave a comment and I will accommodate your request.