Nike Vapor 12 Elite FG Firm-Ground Football Boot - Grey The Flyknit and synthetic upper of the Nike Vapor 12 Elite FG wraps underneath your foot for an all-enveloping, second-skin-like fit straight out of the box. The two-part podular plate system utilises a lightweight internal chassis that flexes for speed at every step. Benefits One-piece upper wraps under the foot for an adaptive, all-round fit. Micro-textured Flyknit construction provides touch at high speeds. Podular plate system with internal chassis flexes for propulsive traction. All Conditions Control (ACC) technology provides optimal ball control. Heel lining and NIKEGRIP top cloth minimise internal movement. Chevron studs provide traction on firm-ground pitches. Comfort and Traction The lightweight plates under your heel and forefoot are contoured for comfort and flex as you step. Chevron studs give you traction for bursts of speed and quick stops.