Nike React Infinity Run Flyknit 2 - Black - Trainers - UK 12

The React Infinity Run Flyknit 2 features a snug, adaptive fit due to the Flyknit upper. While it stretches, individuals with significantly wide feet might find them restrictive. Consider trying them on or looking for shoes with a wider toe box if this is a concern.

Use a soft brush to remove dry dirt. For tougher stains, a damp cloth with a small amount of mild soap is recommended. Gently scrub the affected area and wipe clean with a damp cloth. Always air dry.

React foam provides a balance of soft cushioning and energy return, offering a durable and responsive ride that helps absorb impact during runs.

Yes, the enhanced cushioning and support make them suitable for marathon training, especially for neutral runners or those who overpronate slightly. Their durability ensures they can withstand high mileage.

Flyknit is a knitted, sock-like material that offers a precise fit, breathability, and lightweight feel, conforming to the foot's shape. Traditional mesh can be less adaptive and may offer less targeted support.

It is generally recommended to replace running shoes every 300-500 miles (480-800 km) or when the cushioning feels significantly compressed and the outsole shows signs of wear. This can vary based on running style and surface.

This is common due to the nature of the supportive Flyknit and React foam. Wear them for short periods initially and gradually increase duration to allow them to break in.

Ensure you tie a secure double knot. Consider replacing the laces with a pair that has better grip if this remains an issue.

The rubber outsole provides good traction on dry surfaces. Be cautious when running on wet pavement, as grip may be reduced.