Shoulder Seam to Shoulder Seam: 18. Armpit to Armpit: 21.5.The item "Horse Hide 1940's Bomber Leather Jacket by Daniel Boone Men's Medium" is in sale since Sunday, March 25, 2018. This item is in the category "Clothing, Shoes & Accessories\Vintage\Men's Vintage Clothing\Outerwear Coats & Jackets". The seller is "eswiley23" and is located in Somerville, Massachusetts. This item can be shipped worldwide.