If you want white flats that'll last, you'll have to dish out a little more money. For the most part, this type of footwear is inexpensive. However, there are some retailers that have a heftier price tag for their shoes. Your best bet is to take your time selecting your flats. Either go into the store and try them on to make sure they're comfortable, or read online reviews from other customers. Try to find flats with a soft interior lining and cushioned souls.