Biggest thing to note is some dried adhesive under the buttons

Detachable Full Length Thermal Liner

There's a few snags in the cuff laurels as photographed and a small scuff above the chest pocket

There's plenty of marking

1 Dress Blue O

British Army Cold Weather Jacket Gilet Liner - Large Lightweight Biggest thing to note isAt 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: 22. 5" Suggested Size: Large Slim Label reads "SIZE 2" Collar to Hem: 27. 5" Vintage Militaria Issued Mid 1960s 1979 Genuine British Army Surplus Grades Grade 1 Great condition, still an excellent liner