Condoms! We love you! Now go away.
Seriously, condoms are great for public health and for controlling how many babies you want to have, but they've got a LOT of room for improvement. They're messy, they're a pain to use, and some people are allergic to latex. Which is why researchers at the University of Washington are trying to improve the prophylactic paradigm, replacing the humble cocksheath with a space-age nano-fabric that's actually woven out of medication.