Adidas UltraBoost 4.0 DNA Trainers - White/Black - UK 4

Primeblue is a material made with Parley Ocean Plastic, which is reclaimed plastic waste collected from beaches and coastal communities before it reaches the ocean. It's part of adidas' commitment to sustainability.

The UltraBoost 4.0 DNA offers excellent cushioning for comfort during long runs, but they are primarily designed as a versatile trainer for daily use, shorter runs, and general fitness. For elite marathon performance, specific marathon racing shoes might offer a different feel.

It is not recommended to machine wash these trainers. Hand washing with mild soap and cold water is the preferred method to maintain the integrity of the Primeknit upper and Boost midsole.

Boost technology uses thousands of small energy-returning capsules that work together to absorb impact and provide a responsive feel. It's known for its durability and consistent performance in various temperatures.

The 'DNA' designation typically signifies a refinement or re-imagining of a classic UltraBoost silhouette, often focusing on heritage designs and materials while retaining the core Boost technology.

Yes, their cushioning and supportive fit make them suitable for many gym activities, including cardio and weight training. However, for specific activities like heavy lifting, flatter, more stable shoes might be preferred.

The Primeknit upper is designed to be snug. If it feels uncomfortable, try wearing them with thinner socks or consider if a half-size larger might be more suitable, especially if you have wider feet.

Clean gently with a damp cloth and mild soap. For tougher stains, use a specialized sneaker cleaner designed for knit materials, testing on an inconspicuous area first.

While the rubber outsole provides good traction, performance on extremely wet surfaces can be reduced. Ensure the outsole is clean and dry for best results. For very slick conditions, exercise caution.