Filter your flatulence and reduce smells shreddies flatulence filtering garments feature an activated carbon back panel that absorbs all flatulence odours comes in a novelty gift box these hipsters come neatly packed in a fun gift box making them an exciting gift comfortable disceet and stylish fit this style of flatulence filtering underwear fits low on the waist and is cut high on the leg these are very discreet offering the wearer added assurance that nobody will be able to tell y