Many were for the eye-popping look that definitely showed off her cleavage.
While others thought the dress was an accident waiting to happen.
Kim's latest outing comes after she recently insisted she hasn't had a nose job — instead blaming childbirth for changing her looks.
She has for years been accused of having rhinoplasty but is adamant she hasn't been under the knife, saying her "real features" started to emerge after giving birth to North and Saint.
She said: "I never had my nose done.
"Everyone thought I did, and I said, 'Wait until I have kids because your real features come out'.
"Pictures, I swear, I look at them and would be like, 'Wow, the bump looks so much bigger in some pictures than in others'."
Kim is no stranger to wearing bold dresses, with the star regularly flashing the flesh during TV appearances and on red carpets.
In January she wore a sheer top on US talk show Watch What Happens Live, alongside sisters Khloe and Kourtney.
Just last week she wore another gravity-defying gown to a black-tie event for AIDS and HIV research.