We are looking for a solution which would indicate if a urinary incontinency underwear is full or needs changing. The solution should indicate when the underwear needs to be replaced (before leaking) allowing time for the consumer to take action. Currently, colour-changing wetness indicators are available in diapers. However, as the indicator is directly in touch with the absorbency layer the colour change is easily achieved and visible at the bottom of the diaper. For an underwear used by adults, the indicator visible at the bottom of the underwear is not user-friendly. The UI underwear is reusable and therefore the indicator should comply in the same manner. However, disposable indicators which can be replaced after each use is also an option. Although visual indicators are preferred, indication need not be limited to visual means only.