Three J Blue Birds Night Shirt (Audrey4) 100% cotton 100% cotton Country of origin: Imported. Back of collar is 3-1/2" tall. Center back is 34" tall. Center front button-up closure is 26" tall with 5 functional buttons. A replacement button is sewn on inside front left facing. Side seams are 23-1/2" long (including 3-7/8" side vents).