Designed to fuel fast sprints, the Superfly 11 Academy's soft NikeSkin upper has you ready for takeoff. Lighter than the previous iteration, it features a knit cuff and grippy traction for snappy bursts in open spaces. Barefoot Touch - The lightweight design of the NikeSkin upper puts your foot close to the ball. It helps give you control when dribbling at high speed. Secure Fit - The snug, supportive Dynamic Fit collar locks you in from first step to full sprint. Traction for the Turf - Rubber outsole provides traction for turf surfaces. Product Details - For use on shorter, synthetic surfaces. Cushioned sockliner.