Puma Men's Evospeed Electric Bolt Tricks Track Shoe Soft & supple Aerodynamic CLARINO ROVENICA synthetic upper that hugs the foot and locks the foot onto the plate; ACHILLES NOTCH in the heel tab; Microfiber & Suede lining for a soft on skin feel; SILICON TRANSPARENT PRINT LINES: Silicon printed lines mimic shape & form of the muscles in foot, for a touch of support; INTERNAL BONDED SUEDE: Material provides optimum support, comfort for barefoot usage; DIE CUT ORTHOLITE SOCKLINER: Cemented to the strobel board to allow for a cushioned fit; USAIN BOLT BRANDING Imported Synthetic sole Sprint like Usain bolt