I ordered these in pewter and gold - they work with everything from skirts to dresses to shorts to palozza and yoga pants.
I did order 1/2 size larger than I normally wear as with ballet flats, have a terrible time with back of flats rubbing my heel.
The 1/2 size makes them more comfortable as it prevents the elastic from being too tight on the back of the heel.
These are darling and I plan to try the ballet flats in other styles as well.