adidas Ultraboost 20 Trainers - White/Black - UK 5.5

The Primeknit upper offers a degree of adaptability. While not specifically wide-fit, many users with slightly wider feet find them comfortable after a short break-in period. Consider trying them on if possible.

Use a damp cloth with a small amount of mild soap. Gently scrub the white areas and wipe clean. Avoid soaking the shoes or using abrasive cleaners.

Boost technology provides exceptional energy return, meaning it absorbs impact and converts it into propulsion, making your runs feel more efficient and comfortable.

While comfortable, these trainers are primarily designed for road running. For gym workouts involving lateral movements or heavy lifting, specialized training shoes might offer better stability and support.

With regular use and proper care, the Ultraboost 20 can last between 300-500 miles, or roughly 6-12 months depending on your running frequency and intensity.

Generally, adidas Ultraboost 20 trainers run true to size for most people. However, fit can be subjective. It's always recommended to check sizing charts and try them on if possible.

Loosen the laces, particularly around the midfoot, and ensure your socks are not too thick. The Primeknit upper will stretch slightly with wear.

Ensure the Continental™ Rubber outsole is clean and free from excessive dirt or debris. The grip is optimized for road surfaces.

Verify you have the correct size and that the lacing provides adequate support without being too constrictive. Break-in period may be required for new shoes.

Midsole yellowing can occur naturally over time due to oxidation. Clean gently with mild soap and water, but understand this is a cosmetic change and does not affect performance.