Know someone that stinks? Are you a little gassy yourself? Fashion First Aid Subtle Butt is an odor filter for your undies that is discreet and effective. The soft fabric-covered antimicrobial activate carbon pads are thin and stick to your clothing with ease. They neutralize any odor that passes through it so while you might not be able to silence the sound of it, you’ll certainly won’t be able to smell it. They are reusable for up to 6 months.