The Predator PowerSwerve TRX has reengineered Predator technology that is more integrated into the power zone for added shooting power. The Predator elements are also placed in the swerve zone for deadly passes and shots. In order to generate maximum momentum on shots, adidas included PowerPulsechambers, which are Tungsten powder-filled elements that shift weight towards the point of impact as you strike the ball. The world's premier boot with cushioning Predator^® and flexible PowerPulse. UPPER: Microfiber leather for durability. Features a smaller but extremely strong external heel counter. Includes reengineered Predator^® that is more integrated into the power zone for shooting power. Predator^® technology is also in the swerve zone for passing and shot power and control. Removable, dynamic PowerPulse, a Tungsten powder-filled element, shifts weight towards the point of impact as you kick for more powerful shots and increased flexibility. adiPRENE insert in the sockliner offers cushioning. OUTSOLE: Split Traxion™ FG for grip and comfort on firm, natural surfaces.