QR Code Link to This Post Harley Davidson Men Leather Jacket Black Genuine Authentic USA 98125-05VM Tall Size 51 2XLThe measurements are of the jacket laying flat. I double the measurement from pit to pit in order to get the chest size. Likewise, the waist measurement is doubled in order to determine the actual size for the waist, which would be located across the belly button area. The length measurement is from the center of the seam at the back of the neck all the way to the bottom edge of the jacket. Sleeve measurement is taken from the top edge of sleeve to the center back of neck because that is how Harley Davidson determines their jackets' sizes.Let me know if you have any questions!MeasurementsPit to Pit - 25.5" Length - 27.75" Shoulders - 21" Waist - 24" Sleeve - 38" Inseam - 19"