Gel-Kayano Silver, 27.0 cm. The logo on the insole is worn off. The other condition is as shown in the photos, with a reasonable amount of wear, but I don't think there are any major stains. I threw away the box, so I will send it in another box. I have no idea about the market price, so I've priced it somewhat arbitrarily. I'm open to offers if you'd like to negotiate the price.