adidas Ultra 4D - Trainers - Black - White - UK 8.5

Measure your foot length from the heel to the tip of your longest toe. If your measurement falls between two sizes, we recommend choosing the larger size for a more comfortable fit.

While the Ultra 4D midsole offers excellent cushioning and energy return, they are primarily designed for daily wear, light training, and casual running. For dedicated long-distance marathon training, you might consider models specifically engineered for that purpose.

It is not recommended to machine wash the Ultra 4D trainers. Cleaning with a damp cloth and mild soap is the best method to preserve the materials and structure of the shoe.

The primary benefit is the 3D-printed lattice structure which provides a unique combination of responsive cushioning, energy return, and personalized support tailored to your foot's impact zones.

The Primeknit upper is designed for breathability and flexibility, not waterproofing. It may offer some resistance to light moisture but is not suitable for heavy rain or wet conditions.

It signifies that the product has been sourced directly from authorized adidas channels, ensuring you receive a genuine, high-quality product.

Adjust the lace tension. For a tighter fit, ensure laces are pulled evenly. For a looser feel, loosen the laces, especially around the midfoot. Refer to the sizing guide for foot measurement if tightness persists.

The Ultra 4D midsole may require a short break-in period. Wear the shoes for short durations initially and gradually increase wear time. The material will adapt to your foot's natural movement.

This can sometimes occur due to friction between components. Try cleaning the insoles and ensuring they are properly seated. If the noise persists, contact customer support.