Nike Air Zoom Alphafly NEXT% 'Watermelon' - CI9925-100 - UK 10.5

The primary benefit is enhanced running economy and energy return, designed to help runners achieve faster times through its combination of Zoom Air units and a carbon fiber plate.

While durable, the Alphafly NEXT% is optimized for racing and high-performance workouts. Daily training might be better suited to less aggressive, more cushioned shoes to preserve the technology and prevent premature wear.

The shoe should feel snug but not constricting. There should be a thumb's width of space between your longest toe and the end of the shoe. The heel should not slip excessively.

'Watermelon' refers to the specific colorway of this model, featuring a white base with red and blue/green gradient accents, reminiscent of the fruit's colors.

No, machine washing is not recommended as it can damage the delicate materials and adhesives. Hand clean with a damp cloth and mild soap.

Return policies vary by retailer. Please check the specific return policy of the vendor from whom you purchased the shoes.

The carbon fiber plate works in conjunction with the Zoom Air units and foam to create a rigid yet responsive structure that helps to propel the runner forward with each step, improving efficiency.

Ensure you have selected the correct size. If still tight, try loosening the laces and re-tying them, or consider wearing thinner socks.

The advanced cushioning and plate technology may naturally degrade with extensive use. For optimal performance, consider using these shoes primarily for racing and key workouts.

This can occasionally happen due to moisture. Ensure the shoes are completely dry. If the noise persists, try applying a small amount of talcum powder inside the shoe.