Realistic - A mixture of phthalate free TPE and TPR that feels like skin. Use only water based or silicone based lubricants. Do not use oil-based lubricants. For upkeep add cornstarch to prevent deterioration.
TPR/TPE - Thermoplastic Rubber/Elastomer is a synthetic mixture of rubber/plastic and elastomer. While TPR/TPE is hypoallergenic in nature it cannot be boiled. Use soap and warm water or toy cleaner to disinfect.