Adidas Silas SLR World Cup Shoes Black White Blue The new Silas Runner brings advanced technology into the skateboarding realm. Like the F50 football boot, the Silas was created to enhance fit and control.Upper: Suede with perforated toe areaOutsole: Rubber outsole with vector tractionInsole: Breathable mesh lining and molded socklinerDouble-stitched for durability; Recessed eyeletsBig rubber toe bumperCheck out all of the Adidas gear in stock here.