Fitted Long-Sleeve Mock-Neck Rib-Knit Mini Dress, size 4X Mock turtleneck collar. Long sleeves. Center seam at back. Soft, fine-gauge rib-knit cotton, with comfortable stretch. This dress has been garment dyed for a one-of-a-kind vintage look. cotton 96%, spandex 4% Brand new without tags. Would recommend this size for a 3X who is tall and wants the dress to fit looser and longer.