Vivaia Margot Black 2.0 Square Toe Flats Size 39.5 Excellent Condition- barely worn once Size chart above in photos 39.5 equates to a 8.5 per the chart from Vivaia Flexibly rib-knit from recycled fibers for a truly feel-good fit, this square-toed ballet flat is your next grab-and-go darling. • Removable, cushioned insole with arch support • Recycled synthetic upper and lining/rubber sole