Black Mini Dress Strapless Black Mini Dress Petite Black Tailored Fitted Mini Dress Petite PrettyLittleThing USA Black Mini Dress. Our most popular cowl neck halter style now available in dress form. Can be styled in endless ways, this little black dress is true closet staple that does it all. Details: Slip on closure ties behind neck Silver metal beads in each tie Can be worn in a variety of ways for maximum styling versatility Sizing: Sizes XS XL available?? Fit true to size and has stretch Double layered jersey with a slight sheen Model Measurements: Model wears a size Small.