NWT DOLCEZZA Button Up Tunic Top Blouse Size Large Black Gray White Sheer Back

This pretty DOLCEZZA button up tunic is brand new with tag.     Tag indicates size "L", however please consider the following measurements before purchasing.  Thank you! Measurements (taken while laying flat): Bust (armpit to armpit) - 21"                                 Shoulder (seam to seam) - 17"   Sleeve (shoulder seam to end of cuff) - 19"       Length (neck seam to end of back hem) - 31"