adidas Futurecraft 4D - Black - Striped - Trainers - UK 7

The 4D midsole is created using Digital Light Synthesis, a process that uses light, oxygen, and liquid resin to create a lattice structure precisely tuned for cushioning and support based on athlete data. Boost uses expanded TPU pellets for a softer, more responsive cushioning.

The Primeknit upper offers some flexibility and a sock-like fit which can accommodate a range of foot shapes. However, the midsole structure itself is not adjustable for width. It is recommended to try them on if possible or consider sizing up if you typically require wider footwear.

The 4D midsole is engineered for durability and consistent performance. While it is designed to withstand regular athletic use, extreme conditions or prolonged heavy stress may affect its longevity, as with any footwear component.

It is not recommended to machine wash the Adidas Futurecraft 4D trainers. Hand washing with a damp cloth and mild soap is the safest method to preserve the integrity of the Primeknit upper and the 4D midsole.

The reflective detailing on the three-stripes is designed to enhance visibility in low-light conditions, making the wearer more noticeable to others, which is beneficial for safety during evening or early morning activities.

The product listing specifies UK sizing. It is recommended to consult a standard Adidas sizing chart for conversion to your local size or measure your foot to ensure the best fit. The 'Core Black' 2021 model is listed in UK 7.

The Primeknit upper will stretch slightly with wear. If still too tight, consider trying a half-size up or exploring alternative lacing techniques to relieve pressure points.

The 4D midsole requires a short break-in period. Wear the shoes for shorter durations initially and gradually increase wear time as the midsole conforms to your foot.

Normal wear and tear will occur with use. For accelerated wear, ensure you are not dragging your feet excessively during walking or running.