Nike Spark Flyknit - Trainers - UK 12

The Nike Spark Flyknit trainers feature a standard width. While the Flyknit upper offers some flexibility, individuals with significantly wide feet may find them snug. It's recommended to try them on or consult size charts carefully.

These trainers are designed for versatile use, excelling in running, training sessions, and casual everyday wear due to their lightweight, responsive, and comfortable design.

Wipe faux leather parts with a soft, damp cloth. For more stubborn dirt, use a mild soap solution on the cloth and then wipe clean with a fresh damp cloth. Always allow to air dry.

Nike typically offers a limited warranty against manufacturing defects. Specific warranty terms can be found on the official Nike website or by contacting their customer support, as it varies by region and product.

It is not recommended to machine wash Nike Spark Flyknit trainers. Machine washing can damage the materials, adhesives, and cushioning, compromising the shoe's structure and performance.

Ensure there is a thumb's width of space between your longest toe and the end of the shoe. Your heel should feel secure without slipping when you walk. Trying them on at the end of the day, when feet are typically slightly larger, can provide the most accurate fit assessment.

The Flyknit material will stretch slightly with wear. Try wearing them with thinner socks initially. If still uncomfortable after a few wears, ensure you have the correct UK size, as the fit can vary slightly between individuals.

For stubborn stains on the Flyknit upper, use a soft-bristled brush with a mixture of mild soap and water. Gently scrub the stained area and then wipe clean with a damp cloth. Rinse thoroughly and allow to air dry.

The cushioning is designed for longevity but will naturally degrade with extensive use. If performance significantly decreases, consider replacing the trainers. Ensure you are not exposing them to excessive heat which can damage the midsole foam.