adidas Ultraboost 20 Primeblue - White / Blue - Size UK 8

Primeblue is a sustainable material made in part with Parley Ocean Plastic, which is intercepted on beaches and coastal communities before it reaches the ocean.

The Ultraboost 20 features a Primeknit-like upper that offers a degree of flexibility. However, they are generally designed for a standard fit. If you have significantly wide feet, it's advisable to try them on or consult sizing guides carefully.

Gently clean the Primeblue upper with a soft brush or cloth and mild soap and cool water. Avoid using harsh chemicals or abrasive cleaners. Allow them to air dry completely.

The Boost cushioning provides exceptional energy return, meaning it absorbs impact and then springs back, giving you a responsive and energized feel with every step.

Yes, the supportive and cushioned nature of the Ultraboost 20 makes them suitable for various gym activities, though they are primarily engineered for running.

The Model Number (MPN) for this specific variant is FY3458-80.

The Ultraboost 20 builds upon previous models with specific material innovations like Primeblue and refined cushioning for enhanced energy return and sustainability.

Loosen the laces and ensure your feet are positioned correctly within the shoe. If still too tight, consider if this is the correct size or if the laces need adjustment for a wider fit.

The Boost cushioning is designed for durability, but its responsiveness can feel less pronounced over extensive mileage. Ensure the shoes are clean, as dirt can sometimes affect perceived performance. If the issue persists after significant use, it may indicate the cushioning has reached the end of its effective lifespan.

While the outsole provides traction, performance may be reduced on very wet or slippery surfaces. Exercise caution in such conditions. Ensure the outsole is free from debris that could impede grip.