These adidas X SpeedPortal Elite Astro Turf Football Boots are designed for speed and agility on artificial grass. The upper is made with lightweight, flexible synthetic yarn. X SpeedFlow technology includes an Agilitycage for stability and support. PrimeKnit material in the instep provides compression and comfort. The CARBITEX SPEEDFRAME outsole offers resilience and lightness. Redesigned studs provide enhanced traction on artificial grass surfaces. Features a slip-on style and the iconic adidas 3 stripes. Upper: Synthetic.