It sounds rather difficult to find out what you can wear. I can understand part of it but I can't understand why you couldn't go in jeans and in a clean sweatshirt (as this is probably gym clothing). Doesn't sound too sexy, offending or not clean enough for me.

Way back in the late 60s when I was in highschool they did not allow us hotpants and bare bellies as well, so when we left school we rolled the T-Shirts high