About this item Original Chelsea slip-on boot with elastic panels; Classic Doc’s DNA with yellow welt stitching, grooved air-cushioned soles and a scripted heel-loop Our iconic air-cushioned sole, re-engineered with an enhanced grip for next-level slip resistance; PVC fused with the central rubber pods of GRIP-TRAX, our unique outsole lug formation Serves up enhanced ergonomic comfort via breathable, moisture-wicking SoftWair sock liners, with strategically-placed memory foam pods The AirWair sole is heat resistant up to 300°C (or 572°F) for 60 seconds; Thoughtful, anti-fatigue design, with extra flex and less weight Made with industrial, full-grain, water-resistant leather that’s spill-resistant and easily wiped clean.