princess polly white long sleeve dress Lillie Mini black minidress framed with long flared sleeves. Princess Polly MARCEAU LONG SLEEVE

The patented ground drive system means that you're always getting a consistent rate, regardless of how fast or slow the operator drives

The easy, loose shape and V-neck make it effortlessly comfortable

How to Style: Be the Belle of the Ball in the Madeline Maxi Dress

The Revenge Dress Known as the "revenge dress," Diana made everyone's jaw drop as she stepped out in a daring fitted ruched off-the-shoulder black mini designed by Christina Stambolian for the 1994 Serpentine Gallery Summer Party, aptly donned on the night Prince Charles confessed to his affairs

A printed chiffon maxi dress with wrap V-neckline, long sleeves and sash tie waist

The exact timing varies year to year, but you can expect the full Halloween experience from early September through Halloween night