Precise training shoes designed for performanceStronger. Faster. More powerful. The Reebok Nano X5 Flow takes our iconic training shoe and perfects it to give you an edge in every workout. It is carefully crafted in every detail, material, and technology. The sleek upper features our most durable Flexweave® to date, and it sits on an innovative DualResponse midsole that provides both sustained stability and explosive power.