Nike ReactX Infinity Run 4 Trainers - White - UK 11.5

Measure your foot length from heel to the tip of your longest toe and consult the Nike sizing guide on the product page. It's also helpful to try them on indoors with your preferred running socks before your first outdoor run.

The ReactX Infinity Run 4 trainers are designed for comfort and performance on daily runs and workouts. While they offer good cushioning for longer distances, their primary design is for regular training rather than elite marathon performance.

No, machine washing is not recommended. Clean them using a damp cloth with mild detergent and air dry them away from direct heat.

The ReactX foam provides enhanced cushioning and improved energy return compared to previous Nike foams, leading to a more comfortable and responsive running experience while also aiming for a reduced environmental footprint.

The combination of responsive cushioning from the ReactX foam and the supportive design helps to absorb impact and provide stability, which can contribute to minimizing the feeling of leg fatigue during and after runs.

These trainers are best suited for road running and general fitness activities. The outsole provides good traction for paved surfaces and moderate trails.

Ensure you have measured your foot accurately according to the sizing guide. Try the trainers with your usual running socks. If still uncomfortable, consider exchanging for a different size.

Break in the shoes with shorter, easier runs before attempting longer distances. Ensure they are tied correctly to provide adequate support without constriction.

Check the outsole for excessive wear or embedded debris. Clean the outsole treads. If wear is significant, the shoes may need replacement.

Loosen the laces, especially around the ankle and midfoot, to allow for more flexibility. Ensure the laces are tied comfortably and not overtightened.