Upgrade your casual footwear options with Boss Green's Extreme runnertrainers. This lightweight style is crafted with a breathable knitted upper, accented with a rubber heel. Featuring a tubed lace up closure system, this style is finished with the brands iconic logo emblazoned to the side. Size selection: British sizing (European sizing)Fits true to size, take your normal sizeUpper: leather, textiles and other materialsLining: textilesSole: Other materials Dark Grey 6(40)