Open Back Silver Sequin Mini Dress. As we head towards the festive season are you fashion ready? Check out this stunning open back silver sequin mini dress which is a new arrival at online fashion store Motel. This shimmery lined polyester dress is perfect for any party season or dress up occasion. It’s open back adds for extra sexiness to your night time fashion look. Fuse with heels or medium to long black boots to complete this fabulous look