The Christian rule of thumb about nudity is guided more by Romans 14 than other passages.
When Paul was penning 13 books of the New Testament, nudity was very common in the Roman empire and it is never condemned in the New Testament.
In fact, people exercised in the nude back then, and sporting events were conducted in the nude. Paul mentions "racing" several times as an example, and never wastes 5 words condemning the nudity that went hand-in-hand with it.
Paul talks about Timothy being circumcised and Titus not being circumcised and such a thing having an impact on their testimony with the Jews. Circumcision was big deal to Jews, it was a big deal to new Christians (Christianity started as a Jewish sect), because with the way they lived and interacted, they would be seeing each others' penises. This ocured, yet, it's never condemned.
Here's an answer that I wrote to someone who asked about modesty. The same principles apply:
Modesty standards depend a lot on your immediate social environment. The "modesty" passage in 2 Timothy 2 is actually referring to ostentaciousness in the context, not sensuality in dressing.
I am a naturist. So when I am able, I prefer not to wear anything. However, I'm smart enough to figure out that this isn't always exceptable depending on who I'm around.
If I go to a church where women wear only skirts and dresses, I comply, and I use common sense. I don't find the tightest dress I can, nor do I choose one with a slit all the way up to my butt, etc...
Some of my missionary friends in Africa relate to me that our modesty standards don't really work over there.
When the Bible was written, public nudity was common place. It was socially exceptable. Paul even had Timothy circumcised so others wouldn't ridicule him for being half Greek. How would they know? Exercise in the gymnasiums was conducted in the nude. Public baths were in the nude. Races were in the nude, thus the gist of Heb. 12:1.
All this being said, nudity is not culturally excepted in the U. S. but it is in other places. I don't recommend flaunting your own personal beliefs and making a statement with how you look in front of people who don't want to see it. I believe in common sense conformity as long as it doesn't violate your own conscience or cause someone else to stumble.
Setting rules for clothing is legalistic and will effectively inoculate Christians from serving Christ in Spirit and in Truth. They'll start to try to prove how holy they are by how much better they follow the rules than the next person.
I used to go to a church where there were set standards for clothing. I used to have all sorts of "scripture" to back it up too. Thank God that he has taught me those scriptures more clearly now, and has gotten me out of that cult.
I recommend applying the principles of Romans 14 to the clothing issue.