Beginning this week, women in the Marines will no longer be required to wear hosiery with their uniform skirts, a first since women became a permanent part of the Marine Corps in 1948.

“Effective immediately, the wear of hosiery with skirts is optional,” the order read. “When wearing hosiery, however, skin tone harmonizing nylon will be worn.”

Sources:
https://www.military.com/daily-news/2024/03/12/marine-corps-tosses-hosiery-requirement-female-marines.html
https://www.marinecorpstimes.com/news/your-marine-corps/2024/03/11/marine-corps-drops-requirement-for-women-to-wear-pantyhose-with-skirts/