Yeah, it is perhaps a mite warmish for the coat. Even without the sport.
[He shrugs it off and lays it carefully on the sand. He may not seem the type to keep up on things like that, but Mal's pretty attached to the coat. Other than rolling up his sleeves though, he doesn't do anything further to disrobe.]
So how's it work then? Ain't exactly a common game among ranchers. Or space pirates.