Amazon.com | Reebok Nano X4 Mens Shoes, Cross Training Gym 。Reebok Nano X4 Shoes Mens Size 9 Red Black Training Gym Wear Crossfit Sneakers Pre-owned - Good Previously worn Reebok Nano X4 training shoes with general wear from regular use. Mesh uppers and interior lining are intact, with noticeable darkening and wear on suede eyestay panels and heel fabric. White midsoles show scuffs and discoloration, outsoles have dirt and tread wear, and shoes are sold without original box or accessories. 5852 30 Day Returns. No questions asked. Fast Shipping