When it comes to the perfect lightweight dress for warm weather, it can be quite a challenge to find. Luckily, Theory designed a chic piece made from silk-cotton. The Avinka Shirt Dress comes in a maxi length with a detachable belt and a muslin textural finish. With a full button front, the round collar makes for a sophisticated yet minimal shape with functional pockets. Wear with a chic pair of slide sandals or loafers for a wonderful summer look. Priced at $565, you can discover more about this piece at Theory.com.