Summer isn't always warm and Sunny. Luckily our Summer doesn't mind wearing a skinny white pair of jeans and comfortable boots underneath. They will keep her warm when temperatures refuse to rise. A cropped trench coat style jacket will shield you from chilly winds. Be sure to take a pair of sunglasses with you though, just in case the sun finally shows. Keep them in a cross body bag with fringes, for that extra cool edge.
Other items by Theory, Seven For All Mankind, Jimmy Choo, ParisTexas, Fred de la Bretoniere.