The uniforms certainly reflected the fashion of the day. I mean, you're talking about the earth tones, the over-wide lapels, McCoy's lounge lizard medallion, the too-tight pants, and the Urban Cowboy buckles which come together somehow tol give off a 70s leisure suite vibe.
As for the risque part, purportedly, women had burned their bras so there was a lot of bra-less-ness in the 70s. And more egregious examples of cloth-covered plumbing was being offered up by the likes of Tiger Beat magazine at the time. (And, as a teenager of the 1970s, it seemed like that every girlfriend i had during those teenage years had at least one such example hanging from her bedroom wall.

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