This is a new insole for the popular Asics DS Light model, either the training shoes or the spikes. I've been using different insoles and kept this one as a spare, but I wore out the shoes themselves, so I'm selling the insoles only. They are new and unused. I don't know the exact size because I didn't have anything to measure with... but based on a rough measurement, I think it's about 22.5cm. Please consider this item, understanding that it's been inspected and stored by a private seller. - Brand: Asics - Color: Black - Size: Approximately 22.5cm Thank you for looking. I had two pairs at home, so I've numbered them.