Peter Millar Seaside Wash Polo Mens Medium Short Sleeve Striped Blue This item is Pre-Owned and the measurements are as follows: Pit to pit- 21" Shoulde r (seam to seam)- 19" Top of collar to Bottom- 30.5" Please be sure to use these measurements on something you own to ensure it will fit. Feel free to reach out and ask any questions you might have!