Nike ReactX Infinity Run 4 Phantom - White - UK 7

ReactX foam is Nike's latest cushioning technology, offering a softer feel and more energy return than previous React foam. It's designed to reduce the environmental impact during production while enhancing runner comfort and performance.

Yes, the enhanced cushioning and stability of the ReactX Infinity Run 4 Phantom make them an excellent choice for marathon training and race day, particularly for runners who prioritize comfort and impact reduction over lightweight speed.

ReactX foam offers a significant reduction in the carbon footprint of foam production and provides a softer, more responsive feel with greater energy return compared to standard React foam.

Refer to Nike's official size guide and measure your foot length. It's also recommended to try them on if possible, as running shoe fit can be subjective. Ensure there is a thumb's width of space between your longest toe and the end of the shoe.

While they offer good cushioning, their primary design is for running. For intense gym workouts involving lateral movements or weightlifting, a more stable training shoe might be more appropriate.

This model, SKU DR2670 005, was released on August 4, 2023.

Loosen the laces and re-tie them, ensuring they are not overtightened. If the issue persists, consider trying a half-size up or a different lacing technique.

The wider base provides stability. If discomfort persists, you may need to consult with a running specialist or consider using aftermarket insoles that offer more specific arch support.

While the rubber outsole provides good traction, optimal grip is achieved on dry or moderately wet road surfaces. Exercise caution on excessively wet or slippery conditions.

New running shoes often require a break-in period. Wear them for short durations initially and gradually increase mileage to allow the materials to adapt to your foot's shape.