The material debate — TPE vs silicone — shapes everything about how a sex doll feels, ages, and holds up to use. This section goes deep on doll construction: how TPE and silicone differ in softness, realism, durability, and maintenance demands; what hybrid dolls (silicone head, TPE body) offer; how internal skeletons and articulated joints work; and why manufacturing quality varies so dramatically between brands. Understanding what your doll is made of is the single best predictor of whether you’ll be happy with it. These guides give you the technical grounding to evaluate any doll on the market.