Currently, females in army bands, honor guards, and female chaplains are authorized to wear army blue slacks in the performance of their duties.
en.wikipedia.org She liked to fashion her own clothes, which, in addition to the slacks, included boots and a black artist frock coat.
en.wikipedia.org For the dress code, denim is not allowed; a tucked-in collared shirt, belt, and slacks or Bermuda shorts are required, as are soft spikes.
en.wikipedia.org During the 1960s and 70s, the peaked cap fell out of use, and the jodhpurs and boots were replaced with slacks and walking shoes.
en.wikipedia.org