Zeraph

I dunno. I used to be a naked little hooligan in my low twenties (running around in boxer shorts, sometimes nothing if alone). Then I started wearing clothes for some odd reason. Now I'm in between. I often go shirtless if temperature permits. Still sometimes rock only boxers. During winter though we keep it cold to save money, so I'm usually fully dressed. But I also like to show off my tattoos and scarification. So going shirtless is a plus in that regard.

edit: you're forgetting the most fiercesome warriors of all, that go pantless, and naked. Celtic berserkers. (or one of those old cultures, can't remember for sure if it was the celts).