The dry suit is produced preferably as a one-piece combined suit made of a three-layer, water-tight but air-permeable, woven laminate with maximum 220 g/m
2 mass per unit area, and also seamlessly includes the feet. A water-tight zipper (4) extends from the crotch area up to the top edge of the collar (5). There is a water-tight zipper (4) on each of the sleeves (8), which extends rearwards from the front edge of the cuff (13) along the lower arm. With said watertight zipper (4, 7) the collar and chest region as well as the sleeves (13) and front arms (8) can open to a certain extent, providing an effective cooling function, which makes the wearing of the dry suit in non-critical mission phases significantly more comfortable and less tiring. In addition, said dry suit has a total weight of less than 1.5 kg and is correspondingly light to wear on the body.