I use to wear only flats , usually there wnt be much options for flats in other brands, but catwalk has good range of flats with great designs which are comfortable to use
If you want to buy new designs, it is heavy on your pocket. So opt of standard fast moving old designs which will be available for offer price
One tip to buy correct size in online is 1st go for the store and make sure about you size, even you can select design and check whether it is comfortable to use. Then you can buy same design for good offers in online shopping