It was only a matter of time ... http://www.fastcoexist.com/3020388/these-high-tech-underwear-keep-your-farts-from-smelling#5 What about the sound? Sadly, no, says the company: "Shreddies are designed to absorb odours, not to muffle the sound. Most flatulence sufferers are able to control the noise by altering their body position."