adidas originals ZX 5K BOOST Trainers Grey Blue - UK 10

While the BOOST technology offers good cushioning, these trainers are primarily designed for casual wear and light activities. For marathon running, specialized running shoes with advanced support and cushioning features are recommended.

Refer to the sizing chart provided by adidas or the retailer. Generally, measure your foot length from heel to toe and compare it with the equivalent UK size. These are unisex trainers, so check the specific sizing guide.

It is not recommended to machine wash these trainers, as it can damage the materials and construction. Hand washing with mild soap and water is the preferred method.

The BOOST technology provides responsive cushioning, delivering energy return with every step, which enhances comfort during extended wear and light activities.

These trainers are not designed to be waterproof. They offer some resistance to light moisture, but prolonged exposure to heavy rain or water may lead to wetness.

Use a soft, damp cloth with a small amount of mild soap for cleaning the color accents. Avoid rubbing too vigorously to prevent color transfer or damage.

'ZX' refers to the iconic adidas running shoe lineage, while '5K' indicates a connection to that series, and 'BOOST' highlights the inclusion of their signature energy-returning cushioning technology.

Adjust the lacing to achieve a more comfortable and secure fit. If the overall size is incorrect, consider exchanging for a different size.

This can sometimes occur due to friction between parts of the shoe or with the insole. Ensure the insole is properly seated. A small amount of talcum powder under the insole might help reduce noise.

If caused by dirt, follow the cleaning instructions using mild soap and water. For persistent discoloration, consult a professional shoe cleaner.