Attention: For the 1603 series, the color Navy Blue 2, Pink 2 and Blue, the buttons are NOT funtional. For the other ones, it buttons down all the way in the front. And, for the 1603 series, the middle knot is just decorative, you can make knot via the separate tie. Material: Polyester + Cotton. Soft material, light and comfortable, a must-have dress in your wardrobe. Design: V Neck, Tie Front, Spaghetti Strap, Open Back, A-line Style, Button Down Design, Midi Dress. Makes you elegant and shining when you wearing it.