This is a typical 19780s Dress set which includes a matching jacket and belt. The dress is made to actually look like a totally separate shirt and skirt however they are combined. Brand is Kathy J with Union Label tag in jacket. I think all pieces are a polyester blend. This is marked a size 14 however since this is a vintage item the sizing might be different from today. Please check measurements. Flat Lay Measurements: Dress: Length from top of shoulder to bottom of skirt 46", From shoulder to waist 18.5", across chest 22", waist 18" (unstretched), underarm to cuff 17" Jacket: Length 22"-25" , chest 22" approximate, underarm to cuff 14"