Zipper Thong underwear with zipper and O-ring detail in front. One size fits men small to medium. Great thong underwear gift for bridal showers, anniversaries, bachelor parties and more! Male Power is a division of Magic Silk. Male Power underwear for men, briefs, thongs, underwear, hot styles of men's clothing from including shorts, shirts, long lounging pants and underwear. Plus their ever popular retro fishnet looks and styles. Also well known for their pouch front styles and erotic sexy looks.