It's one of the planet's fastest boots, powered by a legend. Messi's signature cleat, like any great soccer cleat, owes its performance to the details. The single-layer synthetic SprintSkin upper not only reduces weight but gives you an excellent ball feel. SprintWeb is added for quicker cuts and control during high-speed dribbling. The internal TPU support system increases stability on important lateral and medial movements. The Sprint Frame construction of the outsole uses geometry for stability and balance. The F50's TraXion® 2.0 stud shape has a new triangular design for maximum acceleration on firm, natural surfaces. Adult sizes are miCoach compatible, so with the reduced weight, you'll find out just how fast you can be. Wt. 5.6 oz.