Achieving realistic skin flexibility and appearance is one of the key challenges in sex doll manufacturing. Manufacturers utilize advanced silicone or TPE materials that emulate the softness, elasticity, and warmth of human skin. These materials are formulated with specific additives to enhance their tactile qualities, making them feel more lifelike to touch. The manufacturing process involves high-precision molding techniques, which allow for detailed texturing and realistic features such as pores, veins, and subtle skin variations. To mimic the natural stretch and movement of human skin, these materials are designed to be highly elastic, enabling the dolls’ joints and limbs to move smoothly without cracking or losing shape. Some high-end models incorporate layered skin structures, with a softer outer layer over a denser core, providing both realism and durability. Additionally, the use of heating elements or temperature control systems can simulate body warmth, further enhancing the realistic experience. Overall, a combination of advanced materials, meticulous craftsmanship, and innovative design techniques enables sex dolls to achieve skin flexibility and visual authenticity that closely resemble real human skin.