It is made from a thick 100% polyester material

Now though

so the usual adjustability is nonexistent

acting as gaiters to an extent

This particular jacket would've belonged to a member of the British army's Royal Military Police

British Army S95 Shirt Jacket DPM Camouflage - Medium 160/96 Irish It is made from aAt a glance Lightweight Cotton Blend Material 2 Large Chest Button Pockets Button & Zipper Front Closure Button Adjustable Wrist Cuffs Chest Rank Tab S95 Soldier 95 Design Classic British DPM Camouflage Pattern Chest Size: 44" Suggested Size: Medium Slim Label states a chest around "96"cm Sleeve Length: 21" X Short Label states a height around "160"cm Collar to Hem: 26. 5" Vintage Militaria Mid 1990's Genuine British Army British Forces MOD Surplus