Vivaia Checkered Square Toe Flats (Margot 2.0 Style)— Size 39.5 (Worn Once) — I'm a size 8.5 and these fit great with a little extra room- but probably best for a size 9. These are classic black-and-white checkered flats from Vivaia, known for their sustainable knit designs and ultra-lightweight comfort. Never worn — soles