Ebay offers Reebok Men's Runner 5 Shoes (sizes 12-13) for $25.99 with free shipping.

Product Description:
These men's running shoes power you through the day with comfort that can't be beat. The MemoryTech sockliner conforms to your foot, giving you a custom feel with every stride. A FuelFoam midsole offers the optimal balance of cushioning and response so you get the most out of each step.