How do emesis bags hold vomit?

How do Emesis Bags hold vomit

We all know about the importance of emesis. Specially if you’ve ever experienced motion sickness or had a queasy stomach, you know how important it is to have a reliable way to catch and contain vomit. Emesis bags, also known as sick bags, are specifically designed for this purpose. But have we ever wondered how these bags actually hold in all that vomit?