This is  Betts JOANNA Mary Jane Ballet Flats. 

Bring a playful twist to timeless elegance with the JOANNA. These charming flats combine classic Mary Jane vibes with a modern edge, featuring a chic buckle strap detail for a touch of sophistication. The round toe design ensures maximum comfort while adding a sweet, feminine finish. Lightweight and versatile, these flats are perfect for dancing through your day in style—no matter the occasion. Dress them up with a flowy A-line dress and a cozy cardigan for a vintage-inspired look, or pair them with cropped wide-leg pants and a tucked-in blouse for a contemporary, chic vibe.