Nike Zoom Mercurial Superfly 9 Elite FG Lucent Pack - Yellow - UK 12

Measure your foot length from the heel to the tip of your longest toe. Compare this measurement to the brand's sizing chart. Trying them on indoors is also recommended.

These boots are designed specifically for firm ground (FG) natural grass pitches. While they might offer some grip on artificial grass, they are not optimized for it and may experience premature wear.

Warranty information is typically provided by the retailer at the point of sale. Please refer to your purchase receipt or contact the retailer for details on the warranty.

No, do not put these boots in a washing machine. Cleaning should be done manually with a soft brush and a damp cloth to avoid damaging the materials.

FG stands for Firm Ground, indicating that the boot's stud configuration is designed for optimal performance on natural grass pitches that are not excessively wet or muddy.

The Zoom Air unit provides a springy, responsive feel underfoot, enhancing acceleration and quick movements, giving you an edge in agility and explosive power.

Vaporposite+ is a material blend used in the upper that combines a grid mesh with Vaporweave material, offering a lightweight yet durable construction that enhances ball control and lockdown.

Allow for a break-in period of a few training sessions. Ensure you have selected the correct size by measuring your foot. If discomfort persists, consider alternative models with different fits.

While ACC technology helps, these boots are optimized for firm ground. For very wet or soft conditions, consider boots with a different stud configuration (e.g., SG - Soft Ground).

The Flyknit and Vaporposite+ materials are designed for support and durability. They will soften and conform to your foot with use during the break-in period.

Inspect studs regularly. If significantly worn, consider replacing them if the boot design allows for replaceable studs, or prepare to replace the boots if the wear impacts performance.