The covered S model combines the structural advantages of S-type braiding with a silicone coating, which acts as an effective barrier against in-stent tumor growth. This internal coating protects the stent lumen, prolonging its patency and facilitating its eventual removal. It is ideal for treating distal malignant obstructions or preventing recurrences after previous procedures. It is an excellent solution for interventionalists seeking a balance between protection, flexibility, and ease of handling.