BOSS Sienne Boat is a classic suede boat shoe that pairs a timeless maritime silhouette with a contrasting TPU sole. Ideal for smart-casual wear, it offers a polished look with comfortable, flexible construction. Key attributes: Dark blue | Cow leather (suede) | Flexible TPU outsole | Durable sole | Traditional lacing system | Slip-on construction | Fully lined | Timeless maritime silhouette | Contrast sole | Round toe | Low profile | Dimensions & fit: Regular fit | Composition & care: Upper: 100% cow leather | Lining: 100% cow leather | Innersole: 100% cow leather | Sole: 100% thermoplastic polyurethane