Nike Reactx Infinity Run 4 Trainers - Blue - UK 9

ReactX is a new foam technology used in the midsole of the Nike Reactx Infinity Run 4, designed to provide enhanced cushioning and energy return for a comfortable run.

Yes, they can be used for walking, but they are primarily designed for running. The comfort features make them suitable for everyday use.

Refer to the Nike size chart, or measure your foot and compare it to the size guide. It is recommended to try them on if possible.

While suitable for some trails, they are best suited for road running. The outsole might not provide enough grip on very uneven or muddy terrain.

The lifespan of the cushioning depends on usage, running style, and surface. Generally, running shoes should be replaced every 300-500 miles.

Running-specific socks are recommended as they provide extra cushioning and support. Avoid cotton socks that can retain moisture.

It is not recommended to machine wash these shoes. Use a damp cloth and mild detergent for cleaning.

Ensure you have the correct size. Try loosening the laces or adjusting the fit with different socks. If discomfort persists, consider a different shoe model.

Avoid running on abrasive surfaces. Rotate your shoes with another pair to prolong their life. Consider limiting use on rough terrains.

The water resistance is designed for light moisture. For heavier rain or wet conditions, consider using waterproof socks or a dedicated waterproof running shoe.