Nike Mercurial Superfly 11 Football Boots - Black - Green - 13

These are Firm Ground (FG) boots and are primarily intended for grass and artificial turf pitches. They are not recommended for polished indoor gym floors.

The boots are sized in UK children's sizing. It is recommended to allow about half a thumb's width of space at the toe for comfort during growth.

Yes, the chevron stud pattern is designed to provide reliable grip on both natural grass and synthetic turf surfaces.

Use a soft brush to remove dirt, wipe with a damp cloth, and let them air dry. Do not put them in the washing machine.

The knit cuff provides a secure, sock-like fit that stabilizes the ankle and prevents the foot from sliding inside the boot during rapid changes in direction.

Ensure the knit cuff is fully expanded before entry; it is designed to be snug for support and may stretch slightly over time.

Wear performance football socks that cover the ankle or use athletic gaiters to prevent debris from entering over the cuff.

The chevron studs are optimized for firm ground; if conditions are extremely muddy, consider using a different outsole configuration if available.