Soiled undergarment disposal container

A disposal container for concealing a soiled undergarment, the disposal container comprising:

• a bag having opposite side walls and a top opening for inserting the soiled undergarment in the bag therethrough, the top opening being provided with a sealable closure for sealing the bag with the soiled undergarment contained therein;
• and
• a resizing mechanism, comprising:
• a one-way degassing valve mounted through a first one of said side walls of the bag, said one-way degassing valve having an air extraction aperture configured to extract air from the bag, when sealed, upon application of a force on the bag by a user;
• and
• a plurality of studs each sized and shaped to fit into and close the air extraction aperture of the one-way degassing valve, each stud of the plurality of studs being positioned on one of said side walls at a different distance from the top opening of the bag.