adidas UltraBoost 21 'Tokyo' - UK 6.5

The UltraBoost 21 features 6% more Boost capsules in the midsole for an even more responsive and energetic ride, along with a redesigned upper and outsole for improved stability and comfort.

The Primeknit upper is breathable and water-resistant to a degree, but not fully waterproof. It is designed for ventilation and comfort during runs.

These shoes are primarily designed for road running. The outsole pattern and cushioning are optimized for hard, even surfaces. They are not recommended for technical or muddy trails.

A proper fit should feel snug but not tight, with enough room in the toe box. Your heel should feel secure without slipping. It's recommended to try them on or consult a size guide.

The 'Tokyo' designation often refers to a specific colorway or design theme inspired by the city, but the core performance technology remains consistent with the UltraBoost 21 model.

Gently use a soft brush or a damp cloth with a mild soap solution. Avoid machine washing or harsh scrubbing to maintain the material's integrity and color.

Adjust the lacing to find a more secure or relaxed fit. Ensure you have the correct UK size; consider trying a half size up or down if discomfort persists.

The Boost midsole is designed for long-term durability. However, significant wear and tear will eventually reduce its effectiveness. Ensure proper care and avoid excessive exposure to extreme heat.

While the Continental rubber outsole offers good grip, extremely slick conditions can still pose a risk. Run with caution on very wet or icy surfaces.