linda strapless floral sequin a-line mini dress HELSI Linda Floral Sequin Mini Dress

The person on the left is wearing a black tuxedo, and the person on the right is wearing a bright pink gown with a long train

Diamond shape neckline

By Pascal Le Segretain/Getty Images.And at last, we know: Catherine Middleton, Her Royal Highness the Duchess of Cambridge, wore a nip-waisted, long-sleeved dress (Grace Kelly alert!) with sheer, cream-lace arms and a V-neckline over a form-fitting bodice

Designed to withstand hot, humid days, its breathable nature and built-in stretch provide a beautiful drape, while features like the V-neck, covered button fastening, and concealed side zipper add to its sophisticated charm