I purchased this last year for the entrance ceremony and wore it for about an hour during the ceremony. The collar is detachable. I will also include a pair of Apres les Cours socks that I purchased at the same time as a bonus. These are unused. I am also selling formal ballet shoes separately ⭐︎ - Color: Navy - Design: Lace collar - Sleeve design: Long sleeve - Collar design: Lace trim Thank you for looking.