In an Academy Awards ceremony centered on an exceptional number of gifted nominees over 40 — many of them women — the standout fashion moment was unquestionably that of Rita Moreno. The 86-year-old actress belongs to a specific elite.

Beyond her gift for collecting statuettes (she is an EGOT — having earned an Emmy, a Grammy, an Oscar and a Tony), Ms. Moreno is sharp-minded and witty, a longtime dancer nimble enough as an octogenarian to skitter across a stage in front of millions and to do it in heels.

Presenting the Academy Award for best foreign-language film — to the Chilean movie “A Fantastic Woman” — Ms. Moreno scored major style points by dressing in a repurposed version of an outfit she wore to collect her own Oscar, for “West Side Story,” in 1962.

The full skirt was made from the weighty brocade cloth typically used for a kimono obi. Before the ceremony, Ms. Moreno explained that it had been fashioned for her in Manila. Back then, actresses were expected to provide their own get-ups for award ceremonies, without the help of stylists.