Tough enough for anything. Comfortable enough for every day. These boots built from a mix of Extra Tough Nylon and a durable rubbery material, with a Scotchguard, water-repellent finish to keep out mud and puddles. Scripted heel loop and yellow stitch.Built with core Dr. Martens DNA: grooved edges, an AirWair heel loop and visible stitching. Extra Tough Nylon is an extra tough, synthetic woven fabric with exceptional strength and elasticity. Rubbery is a synthetic material that looks and feels like rubber but is closer to PU leather. Wipe it clean with a damp cloth.