Instep: very open instep area, so fitting for high or lower instep is not a factor.
Arch: Super cushion soles, various arches should be able to comfortable fit this shoe.
Width: Smaller widths may feel the need to size down or adjust the buckles accordingly for a more snug fit.
Length: This is what plays the biggest part in overall size. Going up a size will increase the length of the shoe.
If you are a 1/2 size, size down.
Black straps, White soles, and a cute patterned sole.