Adidas F50 Adizero X-TRX Firm Ground Soccer Boots traxion sole SPRINTSKIN is a revolutionary single layer synthetic for incredible ball-feeling and reduc TRAXION FG Outsole - maximises acceleration and provides superb grip As worn by Lionel Messi - FIFA World player of the year 2009 SPRINTFRAME construction offers super lightweight stability agION anti-microbial treatment - in the boot to help with odours and to prevent bacteria b