Marie Eiffel

The Sag Harbor location of this French-inspired boutique (which also has a location on Shelter Island) stocks summer essentials like sundresses in bold, gauzy, lightweight fabrics, as well as brightly hued totes and basics like striped camis that are perfect for summer days and nights where you need to look cute without trying. Finish your look with earrings or a ring from the jewelry collection, which manages to be striking and casual at the same time.