I purchased these last month. They are Mizuno Wave Rider 28s. The size is 23 centimeters. The color is black. I've only used them for 5 kilometers on two separate days, so they are in good condition. I threw away the box. WAVE RIDER 28 For a smoother and more enjoyable run, for longer distances The midsole features the new "MIZUNO ENERZY NXT" material, which is softer and more responsive. This cushioning and stability model is suitable for all runners and running scenarios, from beginner runners to speed runners for jogging. ■Color: 22: Black x Gray x Silver ■Weight: Approximately 240g ■Upper material: Synthetic fiber x Artificial leather ■Sole material: Synthetic sole ■Width: 2E equivalent ■Insole: Premium insole, removable