A basic round neckline opening, soft material, women's sportswear, MABD1106

I want a collar opening in a U shape, soft stretch fabric on the body like silk, fabric: 44.2% cotton, 51% rayon, 4.8% spandex. Size chart: Reminder to our valued customers, due to manual measurement, there may be an error of (2-3 cm or 1 inch) because of different measurement methods.