They say that He-Man gets his powers from the mystical Sword or from the Castle Greyskull, however looking at this great 90% cotton / 10% polyester He-Man Eternia Gym T-Shirt it becomes apparent! Prince Adam decided to use that p90x workout program! Man, that DVD runs like an hour and change and you get ripped pretty fast. After p90x, you can fight sorcerers or throw mountains and icebergs. That's what I've been told anyways. The He-Man Eternia Gym T-Shirt is somewhat distressed and proudly displays He-Man and the 'logo' for the Eternia Gym! Once you get this t-shirt, you'll be picking things up and putting them down in no time!