J.Crew Sundowner Tunic Medium top light blue white

J.Crew Sundowner Tunic. Half button. Blue and white. Nice condition. Size: Medium Measurements: Chest: 21" Length: 32" We Measure Chest size by laying shirt flat face down and measuring arm pit seam to arm pit seam.  Length is measured by measuring straight down the center of the back,  center of the back collar seam (where collar is sewn to shirt) to tail end.