Nike Mercurial Vapor 16 Elite FG - Black - UK 6.5

'FG' stands for Firm Ground. This means the boots are designed specifically for use on natural grass pitches that are firm and not excessively wet or muddy.

No, it is strongly recommended not to use FG boots on artificial turf (AG). This can lead to premature wear of the soleplate and studs, can void warranties, and may increase the risk of injury due to improper traction and stud pressure.

After each use, remove excess dirt by knocking them together or using a soft brush. Wipe the upper and soleplate with a damp cloth. Allow them to air dry naturally at room temperature, away from direct heat or sunlight.

While modern football boots offer some water resistance to protect against light dew or rain, they are not completely waterproof. They are designed to manage moisture but will get wet in heavy rain or very wet conditions.

The break-in period varies by individual, but typically ranges from a few hours to a few short training sessions (e.g., 2-4 sessions of 30-60 minutes). It's best to wear them for light activities before intense play.

Nike Mercurial boots are generally designed for a snug, performance fit. Most users find them to run true to their usual shoe size, but individual foot shape can influence fit. If unsure, consult a sizing chart or try them on.

Ensure you have the correct size. New boots often require a break-in period; wear them for short durations before full matches. Try different thickness football socks. Consider using boot stretchers if the issue persists in specific spots.

Confirm you are playing on a firm natural grass pitch. These boots are not designed for artificial turf or very wet/muddy conditions. Check studs for excessive wear or damage; worn studs reduce traction.

Ensure you are using a secure lacing technique, such as a double knot. You may also try different lacing patterns that provide more friction, or consider replacing worn laces.

After each use, remove insoles and allow boots to air dry completely. Use newspaper to absorb moisture inside. Consider using shoe deodorizers or sprinkling baking soda inside the boots overnight.