You can't. The zipper rope behind the diving suit can't be removed. The zipper rope behind the diving suit can prevent water from entering the diving suit and reduce the temperature loss during diving, so it can't be taken off. A diving suit provides thermal protection when wearing wet clothes. It is usually made of foamed neoprene and is used for water sports and/or water sports of surfers, divers, windsurfers, kayakers and others. Other activities mainly provide thermal insulation, but also provide buoyancy and self-protection wear, ultraviolet radiation and bites of marine life.