Nike ReactX Infinity Run 4 Trainers - Grey - UK 9

ReactX foam offers improved energy return and reduced environmental impact compared to previous Nike foams, providing a more responsive and sustainable cushioning experience.

The standard fit is designed to accommodate most adult female foot shapes. For significantly wide feet, it's recommended to try them on in person if possible, as individual fit can vary.

You should have about a thumb's width of space between your longest toe and the front of the shoe when standing. The heel should feel secure without excessive slipping.

While they offer good cushioning for some gym activities, they are optimized for running. For activities requiring lateral stability, such as weightlifting or court sports, specialized gym shoes might be more appropriate.

With regular use for running and proper care, the ReactX Infinity Run 4 trainers are typically expected to last between 300-500 miles, depending on running surface, gait, and maintenance.

Yes, the Nike ReactX Infinity Run 4 series is available in a variety of colourways. This guide focuses on the Light Smoke Grey with Purple accents.

Ensure the laces are adjusted correctly for a snug but not overly tight fit. Verify you have the correct size. Break-in period might be necessary for new shoes.

Ensure the shoes are not being used for activities other than running, which can accelerate wear. Clean the shoes regularly according to care instructions.

The outsole is designed for general traction. For significantly wet or slippery conditions, exercise caution. The grip may be reduced compared to specialized trail running shoes.