If the material or fabric used in the costume you purchase is of inferior quality, it will wear out sooner than expected. The composition of the materials used to manufacture sex dolls by different sex toy producers also affects the lifespan of the doll. While there are various materials available, silicone and TPE are considered more durable compared to others. Therefore, when selecting a sex doll, opt for one made of silicone or TPE, as they have a longer lifespan.