Adidas UltraBoost Leather - Core Black - Trainers - UK 4.5

The fit can vary. Measure your foot length and compare it with the sizing guide. If you are between sizes, choosing the larger size might offer more room. The leather upper will also offer some natural give.

You can clean the Boost sole with a soft brush and mild soap and water. Wipe clean with a damp cloth and allow to air dry.

The Boost technology provides excellent cushioning for running, but suitability for long distances depends on individual needs and preferences. They are generally well-regarded for their comfort and energy return.

The primary difference is the upper material. The leather version offers a more premium look and feel, potentially increased durability, and a different fit compared to mesh or Primeknit uppers.

Store them in a cool, dry place, away from direct sunlight. Using shoe trees can help maintain their shape and prevent creasing.

Information regarding warranty periods is typically provided by the retailer at the point of sale or on the official adidas website.

Yes, the insoles are generally removable, allowing for the insertion of custom orthotics or replacement if needed.

The leather upper is designed to break in and mold to your foot over time. Wear them for short periods initially to allow them to stretch naturally.

While Boost technology is durable, its cushioning can feel less pronounced with extensive use. Ensure the shoes are clean and laces are properly adjusted. For significant loss of cushioning, consider if the shoes have reached the end of their lifespan.

Ensure the Continental™ Stretchweb outsole is clean and free from debris. While designed for grip, performance on very wet surfaces can vary. Avoid extremely slippery conditions.

Creasing is natural for leather. To minimize deep creases, use shoe trees when not in use and avoid bending the toe box excessively during wear.