Nike React Infinity Run Flyknit 3 - White - UK 5.5

Measure your foot from the heel's most prominent point to the tip of your longest toe. If your measurement falls between two sizes, it is recommended to choose the larger size. Refer to the detailed 'How to measure foot length' guide for precise instructions.

The primary benefit is its advanced cushioning system (React foam) combined with a stable design and adaptive Flyknit upper, offering a comfortable and supportive ride for various types of runs.

Yes, the React Infinity Run Flyknit 3 provides ample cushioning and support, making it a suitable option for marathon training and race day, especially for runners who prioritize comfort and impact protection.

Flyknit is a Nike-specific technology that uses engineered yarns to create a lightweight, breathable, and form-fitting upper. It offers a more precise and adaptive fit compared to the generally less structured nature of traditional mesh.

These shoes are primarily designed for road running. While they can handle light, well-groomed trails, they lack the aggressive traction and protective features needed for technical or rough off-road terrain.

The 'Premium' designation often indicates enhanced materials, unique colorways, or specific design elements that differentiate it from the standard model. In this case, it refers to the 'Floral Watercolor' pattern.

The React foam is known for its durability. Typically, you can expect the cushioning to remain effective for 300-500 miles of running, depending on your running style, weight, and the surfaces you run on.

Ensure you have measured your foot accurately according to the provided guide. European sizing can sometimes vary slightly between brands. If between sizes, choose the larger size for a more comfortable fit.

Adjust the lacing to find the optimal tension for your midfoot. The Flyknit upper is designed to adapt, so small adjustments can significantly change the feel.

While React foam is durable, prolonged heavy use can eventually compress. Ensure you are not exceeding the recommended mileage for optimal performance, typically 300-500 miles.