A Base London signature style, Carnoustie is a men's leather slip on formal shoe. It's a shoe that will stand the test of time and a reliable shoe that will go with any outfit Fastening:Slip on Material Composition:Leather/Textile/Other Materials Base Carnoustie Excel. Classic Base London men's Shoe. Part of the Base London larger sizes range. Slip-on, moccasin loafer. Base London branding tab and emboss. Quality Suede Lining. Rubber outsole with studded pad tread. Waxy leather uppers.