Boutique 9's Flex Ballet Flat  is comfortable, durable, versatile, and well-priced. The flexible sole allows you to see where the day takes you--from throwing around the frisbee to contemplating modernist sculptures. Other options include the jeweled but subtle Jeffrey Cambell Haley Jewel Ballet Flat  and light-hearted Steve Madden Dolle Flat with cutouts .

This Bloch Captoe Ballet Flat , in two-toned patent leather, is casual but classic. Pair it with stove-pipe jeans , an oversized oxford , and oversized sunglasses . You could also go with the modern-day classic Tory Burch Reva Flat  in a solid color, or the basic but luxurious Vera Wang Lavender Label Lillian Flat . These shoes will set you back a little bit, but they'll last through a few seasons and a lot of outfits

Make all the passersby jealous with these Chloe Flats . You can wear them from noon 'till night with nearly everything in your wardrobe. Also think about these marvelous, metallic Maloles  or the undeniably cool, comfortable Marc Jacobs Patent leather  wunder-flats. 

These Dolce Vita studded flats  are perfect for a night out anywhere. Think of gold as a bright neutral, and wear these with your favorite mini-skirt  or dark skinnies . These leopard print Steve Madden flats  are the perfect entre into statement patterns. Or, channel Dorothy with these ruffled, ruby-red Jeffrey Cambell flats .

Add several splashes of color to your go-to LBD  with these vibrant trend-pieces by Cynthia Vincent . This pair of embossed snake-printed  Bloch flats  are perfect for a long night on the town that's hard on your feet. Let your personality shine through in these quirky-but-cute Marc by Marc Jacobs flats . 

These Alexander Mcqueen Flats  are non-negotiable for the pretty-in-punk princess with no limit on her Amex . For the uptown girl  with a penthouse and a pedigree, these sparkly Oscar de la Renta Flats  are perfection. If ballet flats were fit for a queen, her majesty would behold these bright pink Valentino beauties .

Store these simple, structured Kenneth Cole Reaction flats  in your desk. These suede ballet flats by J.Crew  pair well with business-casual attire. Part patent leather, part quilted, and wrapped with a bow, these Ralph Lauren flats  are serious but sweet.

To stay warm during your commute without sacrificing style, slip on these Stuart Weitzman shearling-lined flats.  For structured femininity, check out these Elizabeth and James flats . Frye shoes look vintage, wear-in well, and never seem to go out of style. Wear these Frye flats  on your next Casual Frye-day.  

The buckle means business and the signature plaid lets you have a little fun. Go for broke in these leather Burberry ballerinas . Gucci, Gucci, Goo--these  flats  are for you (if you want iconic simplicity in a shoe). If you work in a casual environment, Lanvin patent ballet flats  are a sure bet.