Smelly Proof XSmall 4 mil Black Bags 5 x 4.5 InchWant a way to hide that smell? We have the ideal solution - Smelly Proof Baggies! Not only are they amazing for hiding smells, this range of Smelly Proof Baggies are also made of puncture and tear resistant plastic. Once sealed at the top of the bag then there is no way anything is getting in or out, be it a smell or water.