noun
jersey; maillot (fabric)
Refers to the stretchy knitted fabric used for sportswear, swimwear, and dancewear, or to garments made from it. In Japanese, it often specifically means a leotard or a swimsuit made of this material.
from French
バレエのレッスンにはマイヨを着ていきます。
I wear a leotard to ballet lessons.
この水着はマイヨ素材でできている。
This swimsuit is made of maillot fabric.