NASA’s first all-female spacewalk isn’t happening. Blame a wardrobe malfunction.

NASA has aborted its mission for a first-ever all-female spacewalk around the International Space Station because there are not enough spacesuits to fit the female astronauts, the agency said.

Astronauts Anne McClain and Christina Koch had planned to conclude Women's History Month with a spacewalk Friday to install batteries outside the space station.

But NASA spokeswoman Stephanie Schierholz said in an email Tuesday to The Washington Post that both women now need a medium-sized hard upper torso — the shirt of the spacesuit — and there is only one medium-sized suit on the space station that is ready for use.