Melania Trump's simple yet chic black dress from the first 2016 presidential debate on Monday, September 26, has already sold out.

According to US weekly, the $2,645 simple off-the-shoulder stretch-knit frock dress designed by Roland Mouret, sold out within hours of her appearance at the debate.

The former model was first spotted when she exchange pleasantries with former president Bill Clinton before her billionaire husband and democratic nominee Hillary Clinton face-off against each other at the debate.