In comments under the Space SE question Why do EVA suits have legs? the OP clarifies that for a humanoid astronaut performing extravehicular activities their suit may not need individual legs but instead there could be a single "leg" or a hard shell or pod.
This brings (vaguely) to mind some old SciFi cover art with humanoid astronauts wearing exactly this; a hard shell or "pod" lower half and more of a "suit" like upper half with legs, either doing work or jetting a short distance from one object to the next as part of some activity.
Is this enough of a description to track this down?