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 main shoes, so I'm selling the insoles only. Brand new, unused. I don't know the exact size because I didn't have anything to measure it with... but judging by the measuring tape, I think it's about 23.5cm. Please consider this item with the understanding that it's been inspected and stored by a non-professional. - Brand: Asics - Color: Black - Size: Approximately 23.5cm Thank you for looking.