Ballet flat Caroline Biss E Mia Fitflop Lacoste Lauren Ralph Lauren Living Kitzbuhel Louisa New Paris Londres Polo Ralph Lauren Pons Quintana Twinset U.s. Polo Assn Verbenas Viguera Virgilia Valentina Purple 10 11 3 - 3.5 4 - 4.5 6 - 6.5 8 - 8.5 Summer Removable sole