Read a silicone material label
Check what the maker actually identifies.
Find the exact wording
Look for a material entry tied to the model and variant. Silicone, a silicone blend and a silicone coating can describe different constructions. If the listing uses only a marketing name, ask for the material of the part that contacts skin.
Read firmness separately
Two products can both list silicone and differ in how much they bend. Ask for a firmness description if the listing doesn’t give one. Compare firmness together with width and shape.