This is hard. Very hard. Possibly the hardest, naturally

I am forever. At least that's what some would say. I was under a lot of pressure, but now that's gone away. It used to be hot around me, but now, super cool, I am. Cool enough you could call me ice, or fake me as a scam.

I'm a dress type for the English, and broader for Americans. I'm mandatory in most public buisineses. I'm oversized, graphic, cut-off and pressed. I'll get off your back for someone distressed. What am I?

If you don't cut this, and you end up eating the whole thing, technically you only had one piece. What am I?

I am bought by the yard but worn by the foot. What am I?