Fast goes full speed in the Messi-inspired F10 junior boot. Designed for firm-ground pitches and featuring a Messi logo, a soft synthetic upper and a SPEEDTRAXION outsole that gets you the the ball first. Upper: Exclusive Messi Design: A unique premium design graphic highlights the best player in the world, combined iwth his personalized "M" logo featured in the center of the heel. Soft, highly abrasion-resistant synthetic material with leather finsih in forefoot area. Inlay: Die-cut EVA insole for light weight and comfort. ADIFIT measuring tool for accurate fit. Outsole: SPEEDTRAXION: New high-speed stud alignment for maximum acceleration and quicker turns.