Measurements are provided because the tags aren't always accurate due to shrinkage or previous alterations - Marked sizes on clothing mean absolutely nothing, what really matters are the measurements. Todays designers rarely share similar opinions as to how certain sizes should measure and fit. Also, there may be inconsistency on size/fit within the same designer due to items being made in different factories at different times. If you need any additional measurements or photos don't hesitate to ask. Tagged Size of Jacket - 40R.From the arm pit seam to the other armpit seam - 21. From top seam of back (not including collar) to bottom hem - 29. From the shoulder seam to the end of cuff - 25" + 1 1/4" to let out. Measured side to side across the upper button - 38. Measured on the back side from shoulder seam to shoulder seam - 18. I will send you an updated invoice for purchasing multiple items. Please be aware that depending on where you live packages may take weeks or even months to arrive. The item "Brooks Brothers Milano Fit Wool Sport Coat Gray Glen Plaid withBlue Checks 40R" is in sale since Sunday, March 3, 2019. This item is in the category "Clothing, Shoes & Accessories\Men's Clothing\Suits & Suit Separates". The seller is "designer_deals_2_u" and is located in Aurora, Colorado. This item can be shipped worldwide.