These boots are designed for use on firm ground (FG) surfaces only, which typically include natural grass pitches that are firm or slightly damp. To ensure a comfortable and secure fit, properly lace the boots, paying attention to the snugness around the ankle from the Flyknit collar.Care Instructions:- Cleaning: > Info needed: For optimal longevity, clean boots after each use. Typically, remove excess mud with a soft brush, then wipe with a damp cloth. Avoid harsh chemicals.- Drying: > Info needed: Allow boots to air dry naturally at room temperature. Do not expose to direct heat sources like radiators or sunlight, as this can damage materials.- Storage: > Info needed: Store boots in a cool, dry place, ideally with boot trees or crumpled newspaper inside to maintain their shape.