Maybe he meant HE was armless, so he's wearing a sleeveless tank top...

But, yeah... I'mma hafta go with JJ and Redy on this one... I mean, LT... even in SoCarolina, if you need a hood, it's too cold to wear a tank top, dude... come on!!!
Plus, it's October... who's still wearing sleeveless in October? Or armless....