This is a close-fitting garment made of 100% cotton, stretchy fabric. It has a zipper in the back. The elegant muted pink color gives it a formal feel, so I think it can be worn to formal occasions. My child quickly outgrew it, so it hasn't been worn much. Please understand that this item has been inspected by a non-professional and is a used item that has been worn by a child. If you are sensitive to such things, please consider carefully before purchasing. Instant purchase is welcome! I will ship it as compactly as possible. Also, I may use recycled boxes for packaging. Thank you very much! Sleeve Length: Long sleeve Color: Pink Pattern Design: Print (logo, etc.) Material: Cotton