Nike ReactX Infinity Run 4 - Blue - UK 6

The Nike ReactX Infinity Run 4 is best suited for neutral runners who need a comfortable and cushioned shoe for their daily training miles on roads.

Yes, the ample cushioning and comfort features make it a solid choice for marathon training and even the race itself, especially for runners who prioritize comfort over lightweight speed.

Gently clean the shoes with a damp cloth and mild soap. Avoid machine washing or using harsh detergents. Allow them to air dry completely.

The lifespan varies based on usage, but typically, running shoes like these are recommended to be replaced every 300-500 miles (480-800 kilometers) as the cushioning and support begin to wear down.

These shoes are primarily designed for road running. The outsole offers good grip on pavement, but may not provide sufficient traction or protection for uneven and technical trail surfaces.

ReactX foam is designed to offer improved energy return and greater sustainability compared to previous iterations of Nike's React foam technology.

Ensure laces are loosened before putting on. The upper material is designed to stretch slightly with wear. If tightness persists after several uses, consider alternative lacing techniques or seek advice on potential sizing up.

Running shoe cushioning naturally degrades over time. The ReactX Infinity Run 4 is designed for durability, but performance may gradually decrease after 300-500 miles. Consider replacing the shoes when the cushioning feels significantly less responsive.

While the outsole is durable, traction on very wet or slippery surfaces may be reduced. Exercise caution and ensure good footing on slick terrain.