This is a tight dress from Lautreamont. The collar can be easily attached and detached with a snap button. The pockets are for decoration only. The fabric is quite sturdy and has a lining, so it's warm. It's knee-length on a person who is 160cm tall. There's a slit in the back, making it easy to walk in. It's almost new as I've only worn it once. The length goes well with long boots! Flat measurements: Width: 44cm Shoulder width: 37cm Length: 93cm (from the center of the back neck to the hem) Waist: 45cm Color: Charcoal gray. I think you can wear it to formal occasions. Thank you. Sleeve length: Long sleeve Pattern/Design: Solid