Vacuum storage bags usually compress any content by simply rolling out the air. In fact, the absence of air tend to reduce the space that is taken up by the clothing inside the bag. Also, this airtight feature still prevents odor from entering the bag, thus making your clothes to remain clean and also smell fresh. In addition, dust and dirt cannot penetrate these bags. These vacuum storage bags are also watertight, thus prevent moisture or even moulds from building up.