It sounds like you are describing a sexy and elegant formal dress. The dress features an open back and an off-shoulder design, making it suitable for evening events and formal occasions. Additionally, the inclusion of strips on the top adds a stylish element to the dress. The description also mentions that the dress is custom-made, indicating that it can be tailored to fit individual measurements. This type of gown would likely be a stunning choice for special events such as proms or weddings.