Adidas X Speedportal Messi.3 FG Firm Ground Soccer Cleat. Follow Lionel Messi into a new dimension of speed in the X Speedportal designed to help players go beyond their limits and reach u ncharted levels of speed. A durable coated textile upper and low-cut knit collar combine for a comfortable fit and improve d ball feel when dribbling. The High Speed outsole features additional forefoot studs that help generate extra traction fo r rapid acceleration. An external heel lock secures your heel during explosive downhill and lateral movements. Firm ground (FG) outsole and stud layout optimized for use on firm natural grass fields. .