Well it IS official, that OoT Shiek is supposed to be Zeldas male ego, who only exists with magic. Fans don't agree that Zelda uses magic, een it was shown in the game, to change her sex, for hiding better her identy. The official Artwork show him with men chest, but fans don't want see it. Because most people didn't get it the most simple transformation with magic, Shiek was later on TP and HW female, which didn't make any sense, cause everybody knows who is behind Shiek.

I only accept the old Shiek cause he is male and at the time he was an unique character. That Breath Link can wear Shieks mask and that we have the chance to play as shiek, is a proof, that ooT Shiek is male! Besides of the Crossdressing, breath link dosen't have feminine clothes or mask. I don't cound Accsessoires, cause men also can wear them(Ghirahim and Yuga)! xD