Nike Air Zoom Alphafly NEXT% 2 Prototype - White - Black - Size UK 7

While beneficial for performance, beginners might find the aggressive design and technology better suited after establishing a consistent running routine and understanding their stride.

Refer to the Nike sizing chart for UK adult foot sizes. Ensure a snug fit through the midfoot and heel, with enough room in the toe box for natural foot splay during running.

The 'Prototype' designation often refers to early release versions or specific colorways. Core technology and performance features are generally consistent with the standard Alphafly NEXT% 2 model.

While possible, it is generally recommended to save these specialized racing shoes for race days or key speed workouts to preserve their advanced cushioning and energy return systems for peak performance.

The carbon fiber plate is designed for the lifespan of the shoe's performance. While durable, extreme impacts or improper use could potentially compromise its integrity.

Nike typically offers a limited warranty against manufacturing defects. Please refer to Nike's official website or your point of purchase for specific warranty details and duration.

This is common due to the advanced technology. Wear them for short, easy runs initially to allow the shoe to mold to your foot. Ensure lacing is correct, not too tight.

Ensure the shoes are clean, particularly the outsole, for optimal grip. Avoid excessive wear on abrasive surfaces. If performance significantly degrades, it may be time for a new pair.

Loosen the laces, especially around the midfoot, and re-tie. The AtomKnit material is designed to be snug but should not cause pain. Ensure you have the correct size.