In my life, I've only had one pair of TWs that reliably went atomic even though they were in my size and still had a pretty cotton-y feel, and they're in the link above. Mid-2000's era Jockey Life briefs. They still fit tight, but those leg holes stretch like something else.
Actually saw some online... not going out of my way to get them at that price, but it brought back the nostalgia so I thought I'd share.