Bluefly made it official.

The pioneering fashion e-tailer filed for bankruptcy protection on Friday, indicating that the 21-year-old company would be liquidated.

Hundreds of creditors, including Dooney & Bourke, Alepel Shoes and Foxy Luxury will be left holding their unpaid bills now.

Bluefly has between $500,000 and $1 million in assets and up to $10 million in liabilities, according to the court filing.

Its abrupt closure last week caught even its employees by surprise.