Byer lz California top Labeled L can fit Sz S USA

Byer lz California. Made in U.S.A. 88% polyester, 6% nylon, 6% spandex. Labeled Sz L (assuming jrs) but I tried this on and it can fot a women's Small sz or even Xs etc. it is stretchy red and shimmery/ sparkly. Very attractive and form fitting. Pre-owned and in very good condition. Hits at waist level. Measures approximately: 16 1/2" underarm to underarm, and about 21" in length.