I'm sorry, but this racer jacket is no longer available in a size Medium. However, we have retrieved the shoulder width and sleeve length to a size Small and Large.
Shoulder Width: 5 3/4 inches
Sleeve Length: 26 inches
Shoulder Width: 6.5 inches
Sleeve Length: 27 inches
Please feel free to view our men's general size chart for additional sizing information, a direct link has been provided below.http://www.drjays.com/content/custo...