60s-70s Fitted Polyester Knit Blue Geometric Patterned Sleeveless V-Neck S/M

Vintage late 60s or early/mid 70s unstructured polyester knit sleeveless V-neck fitted top with all over blue and white geometric patterns. Darts at bust for shaping and partial back zip. Excellent condition with very light wear. No damage or age related odors. No size tag. Fits like a S/M but please use measurements for best fit. 18” ptp 26” long