Propet men's Gordon work oxfords are hard working shoes. The all leather upper features a removable insole with cushion-gel heel designed for all day comfort. The specially designed rubber outsole provides high-grip slip resistance where you need it the most - on wet and greasy surfaces. Slip-resistance test results: 0.56 dry quarry tile, 0.51 wet quarry tile and 0.30 greasy/wet quarry tile. Material: Leather, Rubber.