An in-suit drink bag is a convenient and practical device that allows people to stay hydrated while wearing a protective suit. However, there are various synonyms that can be used to describe this item. For example, you could refer to an in-suit drink bag as a hydration system, drinking pouch, fluid carrier, or even an H2O reservoir. Alternatively, if you want to emphasize the protective aspect of the bag, you could use a term like biocontainment drink bag, hazmat hydration unit, or chemical-resistant liquid carrier. Regardless of the terminology used, the key point is that these bags serve an essential role in ensuring that workers and other individuals can safely drink water while wearing protective gear.