Alviero Martini 1a Classe Chelsea Boot with a clean, modern silhouette and a chunky lug sole that lifts casual and urban looks. Model name could not be verified from the provided designer code Z 1559 300B. Key attributes: Black | Polyurethane | Stable, reliable grip from lug sole | Suitable for mid-season wear | Elastic side panels for easy on/off | Pull tab at back for easy wear | Slip-on style | Smooth upper | Chunky lug sole | Logo details | Clean, modern silhouette | Composition & care: 100% polyurethane