adidas Adizero F50 TRX FG SYN Synthetic Crafted with SPRINTWEB, for quicker cuts and excellent stability in high-speed dribbling with abrasion-resistant kicking area to leave your opponents in the dust. After ordering your pair with us, you will receive these cleats with two sets of inserts. They will come equipped with the ultra-light insert, for those looking to achieve out of this world speed. The technology of the F50 lies in the outsole, featuring Sprint Frame construction. The Sprint Frame construction outsole provides the perfect balance between lightweight and stability.