NIKE Kids Mercurial Vortex III FG CR7 Soccer Cleats Synthetic Ultra-thin microfiber synthetic leather molds to the shape of your foot for a more locked in fit with better ball handling. Lace-up closure for a snug fit. Contoured sockliner provides low-profile cushioning and support. Low-profile toe box helps get under the ball for improved control. For best use on firm ground (FG) and short grass fields that may be slightly wet but rarely muddy.