For me, the less bulky the sneaker, the better
The White Waistcoat A low-cut, white piqu cotton waistcoat is essential, sitting seamlessly under the tailcoat

H&M Divided XL / US 16-18 New without tags $3.00 H&M Divided M / US 8-10 New without tags $9.00 H&M Divided S / US 4-6 New with tags $4.00 H&M Divided S / US 4-6 New without tags $3.00 H&M Divided S / US 4-6 Very good $3.00 H&M Divided XS / US 2 Very good $4.00 H&M Divided M / US 8-10 Very good $3.00 H&M Divided XS / US 2 Very good $4.00 H&M Divided M / US 8-10 Good $3.00 H&M Divided M / US 8-10 Very good $5.00 H&M Divided S / US 4-6 Very good $8.00 H&M Divided M / US 8-10 Very good $15.00 H&M Divided M / US 8-10 Very good $8.89 H&M Divided L / US 12-14 Very good $12.00 H&M Divided XS / US 2 Very good $11.00 H&M Divided S / US 4-6 Very good $12.00 H&M Divided S / US 4-6 Very good $11.00 H&M Divided M / US 8-10 Very good $10.00 H&M Divided M / US 8-10 Very good $6.00 H&M Divided S / US 4-6 Good $3.00 H&M Divided S / US 4-6 Very good $7.00 H&M Divided S / US 4-6 New with tags $15.00 H&M Divided S / US 4-6 New with tags $45.00

Amazon has surprisingly become one of my favorite places to find these styles
Consider your everyday aesthetic preferences and what makes you feel confident
However, as ballet flats provide little to no lift, it is important to consider your unique proportions if you are petite, avoid wearing ballet flats with long dresses as they may overwhelm your frame