“Love my @lonelylingerie and I think I will wear it to dinner with some boots & a smile because we are all very lucky to be free,” wrote the Girls actress, 29.
The pic follows another body-positive image that Dunham posted earlier this month, in which she shared a mirror selfie after she forgot her gym clothes while visiting fitness guru Tracy Anderson.
Lonely Lingerie reposted Dunham’s latest pic, writing: “Queen Lena being the ultimate babe in her Lonely Bonnie Softcup set. We are so glad you exist.”
Dunham’s boyfriend Jack Antonoff, though, was a bit more covered up in his Memorial Day outfit. He wore dark pants and shirt, a maroon blazer and a small gold medal in another Instagram photo from Dunham – this one captioned, “Holiday Swagger.”