adidas UltraBoost 4.0 DNA - Trainers - White/Black - UK 8.5

While the Boost midsole offers excellent cushioning, the UltraBoost 4.0 DNA is primarily designed for casual wear, everyday comfort, and light running. For marathon-specific training, consider models engineered with advanced stability and support features tailored for long-distance running.

Primeblue is a material made with Parley Ocean Plastic, which is intercepted on beaches and in coastal communities before it reaches the ocean. By using this recycled material, the trainers help reduce plastic waste.

The Primeknit upper is breathable but not waterproof. While they can handle light moisture, they are not ideal for heavy rain. The rubber sole provides good traction, but the upper material may absorb water.

The 'DNA' designation typically signifies a design that revisits and refines the original DNA of the UltraBoost line, often with updated aesthetics or materials. Specific differences can vary by model, but the core Boost technology remains a constant.

The Primeknit upper offers a flexible fit. Try them on with the type of socks you typically wear. They should feel snug but not tight, with enough room in the toe box. Refer to the brand's official size chart for accurate measurements.

Yes, the combination of the durable rubber outsole, reinforced areas, and the resilient Boost midsole makes these trainers built to withstand regular daily wear.

The Primeknit is designed to be snug. Wear them for short periods initially to allow them to stretch slightly. Ensure you have selected the correct size according to the size guide.

This can sometimes occur due to moisture between the insole and midsole, or between the outsole and the ground. Ensure the shoes are completely dry. You can try adding a small amount of talcum powder under the insole if the issue persists.

The Boost midsole is durable, but cushioning can feel less responsive after extensive use. Regular cleaning and avoiding extreme conditions can help maintain performance. If significant degradation occurs, consider replacement.