adidas Nitrocharge 4.0 FxG - Boys' Grade School Drive through the defense with energy that does not stop. Soft, highly abrasion-resistant synthetic material with leather finish in forefoot area provides durability and touch. 3D print of Energy sling design to indicate the elastic and stability zone. Die-cut EVA sockliner with textile finish for comfort. Flexible Ground (FxG) tooling is a new, intensively tested outsole, that's ready to perform on all surfaces. ADIFIT measuring tool for accurate fit. Wt. 6.6 oz.