adidas Performance Men's Nitrocharge 4.0 Firm-Ground Soccer Cleat 100% Synthetic Imported n/a Rubber sole Drive through their defence with energy that doesn't stop this firm ground boot has a sleek slimmed-down shape and features a soft upper material and strong looks to match its powerful play 3D print of energysling design to indicate the elastic and stability zone Soft and high abrasion resistant synthetic material with leather finish in forefoot area