All the guys I used to work with wore either large or extra large. It's easier to wear ones that are a little too big than too small, so if you're an average sized guy, probably an XL. .... I'm an average female... .
Auto Zone (auto parts store) in Ohio. The one I went to let me open a box and try on a pair. XL are much easier to get off after use.
Bethe, we will never accept you as an average female.