NIKE Mercurial Victory III Firm Ground Football Boots Synthetic Synthetic Leather - Soft and supple, this is built for stability, ideal fit and better ball control. Contoured Last - The last mirrors the foot shape for a premium, low-profile fit Firm-ground (FG) Studs - For use on short-grass fields that may be slightly wet but rarely muddy Contoured Sockliner - With a textile cloth cover for low-profile cushioning and comfort Traditional Lacing System - For a secure fit.