adidas UltraBoost 4.0 DNA Trainers - White/Black - UK 5

While the Boost midsole offers excellent cushioning, these trainers are primarily designed for lifestyle wear and shorter runs. For marathon training, dedicated long-distance running shoes might offer more specialized support and durability.

Primeblue incorporates Parley Ocean Plastic, a sustainable material. It does not significantly alter the performance characteristics of the shoe, maintaining the expected comfort and breathability of the Primeknit upper.

It is not recommended to machine wash these trainers. The harshness of the washing cycle can damage the materials, especially the Primeknit upper and Boost midsole. Hand washing is the preferred method.

The product details specify the UK adult foot size. It is advisable to check Adidas's official sizing chart for the most accurate conversion if you are unsure of your exact UK measurement.

Under normal use and with proper care, the colors are designed to be durable. Avoiding prolonged exposure to direct sunlight and harsh chemicals will help maintain the original color vibrancy.

The '4.0 DNA' designation typically refers to a specific knit pattern and design evolution within the UltraBoost lineage. This version emphasizes a classic aesthetic while retaining the core Boost technology and Primeknit upper.

The Primeknit upper is designed to stretch slightly and mold to your foot with wear. Try wearing them around the house for a few hours to break them in.

For minor scuffs, try a gentle cleaning with a damp cloth and mild soap. For more persistent marks, a specialized sneaker cleaner or a magic eraser can be effective.

While Boost cushioning is durable, its responsiveness may slightly decrease with extensive use. Ensure the shoes are clean, as dirt can sometimes affect the feel. Consider rotating with other footwear for longevity.