I am a field service tech and we have a dress code that pretty much revolves around safety, arc flash protection etc. The last place I worked the office was specified as business casual. The men wore collared shirts and the women wore things very similar. All except one. One girl named rachel used to wear leggings as pants. Leggings, a sweater that went down to below her butt, and UGGs. It looked like she went to yoga then tossed on a sweater and boots. No one said a word to her because she was cute, skinny, and good at her job. There are examples of both "fat privilege" and "thin privilege" in work environments. I guess we just have to look for them. On the other hand when you look like a normal human and dress to impress, most people won't complain, except fats. They complain about normal people because they want to normalize being a disgusting fatass. There isn't an outfit in the world that can make a fat impressive. Edited for violating rules. I didn't realize I was in FPH.