Nike ReactX Infinity Run 4 - Blue - Trainers - UK 6.5

ReactX foam offers a softer feel and significantly more energy return compared to standard React foam, aiming for a more responsive and cushioned experience.

The fit is designed to be accommodating, but individuals with significantly wide feet may find them snug. It's recommended to try them on if possible or consider socks that offer less bulk.

They are best suited for road running, daily training, recovery runs, and longer distances due to their enhanced cushioning and stability features.

With proper care and regular use on appropriate surfaces, the shoes typically last between 300-500 miles. This can vary based on running style, weight, and surface.

While they offer good cushioning for long distances, they are primarily designed as daily trainers. For competitive racing, you might consider lighter, more performance-oriented racing flats from Nike.

There should be about a thumb's width of space between your longest toe and the end of the shoe when standing. Your heel should feel secure without slipping, and the forefoot should have room to splay naturally.

Ensure you have the correct size. Try lacing them differently to adjust pressure points. Some materials may require a short break-in period.

The foam may have compressed. Consider replacing the shoes after significant mileage (typically 300-500 miles), depending on wear patterns and individual use.

The outsole is designed for general traction. Be cautious when running on wet or slippery surfaces, as grip may be reduced.