COS Button Up Cotton Poplin Top Blouse Size 12 Navy Blue & White Polka Dot

This pretty COS poplin button up blouse is in excellent pre-owned condition!   Tag indicates size "12", however please consider the following measurements before purchasing.  Thank you! Measurements (taken while laying flat): Bust (armpit to armpit) - 20.5"                                 Shoulder (seam to seam) - 16"   Sleeve (shoulder seam to end of cuff) - 17.5"       Length (top of shoulder to end of hem) - 24"