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The eleven finalists might just prove phrases like “leftover beef tendons” and “graphene-based polymer” can be downright sexy. Fibers from bovine tendons would (theoretically) make condoms feel like a second skin, while the polymer graphene would make for a prophylactic that conducts heat — a sensation both partners could enjoy. Another design makes the condom gently tighten during intercourse, and other finalists improved condoms by making them thinner and more durable.
Thanks to the Bill Gates Foundation, we could know soon enough whether a condom that is stronger and sexier will make men more likely to wrap it up.
Second photo: New Republic