I think it's so lovely, so old fashioned in a good way. I can't have it, but I can always dream I'll find it someday second hand or in sale.
It has a detachable white collar
And charming buttons
But the best thing is you can wear it as a regular jsk without the collar
There is other color ways too, like black and pink, but I think the green is the most fascinating because I don't have any lolita dress in that color.