Disposable overalls for medical, chemical or biotechnological domains and method for producing a disposable apron

The invention relates to disposable overalls (10) for medical, chemical or biotechnological domains, comprising an overall part (12) and a belt system for adapting the size of the overall part to the body. Said belt system (28) comprises a first tie (30) which is joined to the overall part (12) and a first free tie end (34). The belt system (28) also comprises a second tie (36) which is joined to the overall part (12) and a second free tie end (40). The first tie (30) and the second tie (36) are intertwined with each other in an intertwining area (46) in the starting state of the disposable overall (10) proposed by the manufacturer, such that when pulling on the first free tie end (34) and on the second free tie end (40) in counter directions ( 62, 64), the size of the overall part (12) can be continuously reduced.