adidas PureBoost 23 Wide Running Shoes - Black White - Trainers - UK 11.5

Yes, the PureBoost 23 features responsive cushioning that is beneficial for long-distance running, including marathons.

While they offer good general support, they are primarily optimized for running. For dedicated cross-training, specialized gym shoes might offer better lateral stability.

If you often find standard-width shoes constricting around the ball of your foot or toes, the wide fit is likely a good choice. They allow for more natural toe splay.

The PureBoost series typically emphasizes maximum cushioning and comfort for road running, often featuring a more pronounced Boost foam setup.

Wipe the leather gently with a slightly damp cloth. For tougher marks, use a mild leather cleaner and a soft brush, then wipe clean with a damp cloth.

The lifespan of running shoes varies based on usage, terrain, and individual running style. Generally, they are recommended to be replaced after 300-500 miles of running.

Loosen the laces, especially around the forefoot, and re-tie to find a more comfortable fit. If persistent, consider if the 'wide' fit is appropriate for your foot shape.

Over time, Boost cushioning may slightly decrease. Ensure the shoes have not been subjected to extreme conditions or improper cleaning. Regular wear will continue to provide comfort.

Replace laces with standard shoelaces of similar length. Any sports or shoe retailer will stock suitable replacements.