The storage needs of life size sex dolls drive material innovation, and the durability of silicone flat-chested sex dolls reduces the frequency of maintenance. The anti-aging properties of silicone make it difficult for the product to produce permanent creases when folded and stored. With the dust-proof coating technology, the surface cleanliness is still 98% after 6 months of idleness. The magnetic protective cover system of a German brand uses the electrostatic adsorption properties of silicone to achieve airtight closure, so that the privacy protection of the flat chested sex doll reaches the Swiss bank vault level standard.