Ihram is a state that you are in once the conditions are met. It is also refered to the clothing that is worn when you are in the “state of Ihram”
When you’re in ihram, men can only wear 2 white, un-stitched sheets…nothing else. Men can’t cover their heads, There are difference of opinions on the type of footwear you can wear. Women can wear whatever they want, but they can’t cover their faces or hands.