“Girls” creator Lena Dunham is selling 169 pieces from her wardrobe to support planned parenthood.

Dunham will be putting her personal collection up for sale on the consignment site The Real Real, with the entirely of her 70 per cent commission rate going to the women's health organisation.

The items will range from a size 4 to a size 12, and even the Elizabeth Kennedy gown she wore to the 2017 Met Gala will be up for sale for a mere $4,000.

“I realised I had been carrying around a lot of crap, both internally and externally. I always thought I was going to hoard all my clothes for my future daughter, and now I understand, especially being a woman with a reproductive illness, I may end up with an adopted son, I may end up with a daughter who doesn't identify with her gender at birth. You can't live for the future that does not yet exist.

“I have to take all this good fashion fortune I've had and spread it,” Dunham said.