Up for sale is this Black Adjustable Sparring Headgear.
It isn't tagged with a size or labeled gender specific, but it ties in the back, so the size is somewhat adjustable.
Across the front exterior it measures approximately 10" wide x 7" high and the earpieces measure 5 back".
Based on others I have researched, it seems like it would fall into a M/L size. I wear an L/XL hat and can wear it comfortably.