Always there to support you, the Nike Air Zoom Structure 20 Shield Men's Running Shoe is updated with a wider base for incredible stability, and bouncy, flexible cushioning that delivers one smooth stride after another. A weatherized upper and durable traction pattern help keep you dry and on the move in wet-weather conditions. Enhanced Stability Dynamic Support technology adapts to your stride to provide a stable landing with every step. Soft foam cushioning eases the transition from heel to toe. Secure Lockdown Dynamic Fit technology wraps your midfoot for a secure, personalised fit and locked-in feel. All-Weather Protection A durable, water-repellent Flymesh upper helps keep your feet dry while a sticky rubber outsole provides durable traction over wet surfaces.