Nelaf
I have the same problem, usually it is becuase you mix and match vanilla and modded armors, other times it is just becuase of bugs and glitches with different types of invisibility (spells, potions etc.)
hope this helps.
March 1, 2013
Nelaf
And Ben C- he means the bit directly above the Imperial Light Gauntlets he has equipped in the image.
March 1, 2013
Pablo
Alot of armors are like this. Try mix matching Thalmor boots with College robes....huge LuLz.
hope this helps.