Around the waistband there's several buttons

The history around these niche suits

and an internal pocket for more delicate and intimate items

likely a corporal or higher judging from the indents left by the removed patches

British Army Cold Weather Jacket Gilet Liner - Medium Dress Jacket Around the waistband there's severalAt a glance Windproof Nylon Material Button Closure Winter Cold Weather Great Base Layer Under Any Coat Jacket Diamond Polyester Quilting Can be Worn as a Gilet Heavy Duty & Hard Wearing Solid Olive Forest Green Colour Full Length Liner Pit to Pit: 21" Suggested Size: Medium Regular Label reads "SIZE 1" Collar to Hem: 27. 5" Vintage Militaria Issued 1979 1985 Genuine British Army Royal Air Force Surplus Grades Grade 1 Good condition, still an