Nike Spark Flyknit - Trainers - UK 8.5

While the Spark Flyknit offers comfort and efficiency for walking, they are primarily designed for walking and casual wear. For intense running, specialized running shoes are recommended.

Gently clean with a damp cloth and mild soap. Avoid machine washing or harsh detergents to protect the material's integrity.

The hollowed-out design showcases the shoe's internal technology and contributes to a lighter overall weight, enhancing agility and movement.

The trainers have a standard insole. Depending on the thickness of your orthotics, you may need to remove the original insole to accommodate them.

Please refer to the retailer's or Nike's official website for specific warranty information, as it can vary by region and purchase date.

Measure your foot length from heel to toe and compare it with the Nike sizing chart available on their official website or product page. Ensure a snug but not constricting fit.

This can sometimes occur with new shoes. Try wearing them for a few more sessions. If it persists, check for any debris trapped in the sole or laces.

Adjust the lacing system to achieve a more personalized fit. Ensure you have the correct size; refer to the sizing chart if unsure.

Ensure you are wearing appropriate socks. The Flyknit material might require a short break-in period to soften.