Caution:
At least one LEAF-specific car cover, purchased from a local dealer less than a month ago, was presumably made by CoverKing to Nissan's specifications and measurements.
Apparently it was specified (and made) to fit the Test-Drive model LEAF (with a vertical antenna), not the production LEAF (has a swept-back antenna, also different side-view mirrors), and the front (very nice) charge-hatch ended up being about 3 inches "too high" to be used as intended.
We took the cover back, and the Service Associates photographed the misfit problem before it was returned to the Parts Department.
So, you might want to try the "fit" at the point of purchase, or be prepared to make some modest alterations to improve the fit. Perhaps just redoing the antenna pouch would be enough?
I do not know if a "new-dimension" version of the Nissan LEAF car cover is available, and if it will have a different Nssan part number.