An elastomeric material and gloves or condoms made therewith are substantially impermeable to water vapor and liquid water, have a relatively high tensile strength, and have a relatively low resilience. The gloves conform to the shape of a hand when stretched to fit about the hand and then relax so that the pressure exerted on the hand is substantially reduced. The gloves are particularly useful in medical applications and most particularly useful as surgical gloves. Likewise, the condoms conform to the shape of a penis when stretched to fit about the penis and then relax so that the pressure exerted on the penis is substantially reduced. The condoms are useful for preventing the spread of sexually-transmitted diseases.