It's a size S. I've worn it about twice. It's in good condition. Flat measurements: Length: about 87cm Sleeve length: 55cm Waist: about 26cm Knit dress, mini length, knit one-piece, mini, white, black, girly, lady-like, Korean, mass production style, "mine" style, yumekawaii, yamikawaii, Harajuku style, concert outfit, long sleeves, round neck, knee-length, cable knit, flare, plain, simple, spring, autumn, winter, thin, stylish, cute, for women, brown