but this doesn't seem to impact the coat itself

Among the seas of khakis

likely from when the patch was unsewn

Inside Leg: 31" / Regular - Label suggests an inside leg around 80cm

There's general ones from previous use

Austrian Army Olive Drab Anzug 03 Alpine Jacket - Medium 88-92 III/IV Utility but this doesn't seem toAt a glance Polyester & Cotton Blend Material 2 Zipper Pockets, Sleeve Pocket & Internal Pockets Button & Zipper Closure Interior Torso & Waist Drawstrings Button Adjustable Cuffs Button Wind Flap & Zipper Front Heavy Duty & Hard Wearing Solid Olive Drab Colour Pit to Pit: 25" Suggested Size: Medium Slim Label states chest from 88 92cm Can be sized up! Sleeve Length: 25" Regular Austrian III IV Collar to Hem: 28" Modern Militaria Dated 2005 Genuine