Nearly two dozen women in the House, all Democrats, donned sleeveless dresses or blouses on Friday to urge Speaker Paul Ryan, R-Wis., to make good on his promise to make changes to the lower chamber’s dress code.

The lawmakers posed for photos flexing their muscles, wearing sleeveless attire after Rep. Jackie Speier, D-Calif., called on her colleagues to “bare arms” and go sleeveless to stand in “solidarity” with reporters who were recently admonished for “inappropriate attire” in the Speaker’s Lobby.