adidas Yeezy Boost 350 V2 "Carbon" - Grey/Black - Trainers - Size UK 4

The upper is made of adidas's signature Primeknit material, which is a blend of polyester and other synthetic fibers designed for a flexible, sock-like fit.

The sizing is provided in UK adult foot sizes. It is recommended to consult a size chart or try them on if possible, as Yeezy Boost 350 V2 models can sometimes run slightly small.

No, the Primeknit upper is not waterproof. It offers breathability but will absorb water in wet conditions.

It is strongly advised not to machine wash these trainers, as it can damage the Primeknit, Boost cushioning, and adhesive components.

The "Carbon" colorway is distinguished by its specific grey and black palette, mixed stripe and check patterns on the Primeknit, and the translucent Boost sole. Other colorways will have different color schemes and pattern variations.

Specific warranty information is determined by the retailer at the time of purchase. Typically, new footwear from reputable brands comes with a manufacturer's warranty against defects.

While they feature Boost cushioning which is also used in performance shoes, the Yeezy Boost 350 V2 "Carbon" is primarily designed and marketed for lifestyle and casual wear due to its aesthetic and materials.

Wear the shoes around the house for short periods to allow them to stretch slightly. Consider sizing up if the tightness persists and is uncomfortable.

Replace the original laces with a more durable set or learn a secure lacing knot. Ensure the laces are pulled evenly.

Clean the translucent rubber outsole with a damp cloth and mild soap. For stubborn scuffs, a magic eraser or specialized sneaker sole cleaner can be effective, but test in an inconspicuous area first.

Regular cleaning of the outsole can help maintain optimal performance. While Boost is durable, its responsiveness may naturally decrease with extensive, prolonged use.