Jessica threw her perforated jacket over an easy foundation — a white tee and a full jersey skirt that will take you right through Fall, especially if you complete your look with midrise boots and socks. But for the final few weeks of warmth, gladiator sandals, like Alba's winged, Ancient Greek for Carven pair, are the answer to staying casual chic. Finish with a few smart accessories — your sunglasses, some silver jewelry, and a satchel work just fine — and you're both put-together and comfortable, which is a pretty tough feat in early Autumn.