These are winter general issue in the Bundesmarine

it is quite minimal

to have a work uniform that would hide grease

aside from having the Czech flag

Hungarian People's Army Olive Green "Tank" Parka w/ Cold Weather Liner - Medium Double Breasted These are winter general issueAt a glance Heavy Cotton Canvas Material Hidden Button Front 2 Waist Pockets, 2 Zipper Chest Pockets & 1 Internal Chest Pocket on the Liner Water Repellent Showerproof 2 Waist Pockets & 1 Pouch on the Liner & Optional Zip Chest Pockets Elasticated Waistband & Cuffs Cold Weather Winter Storm Flap Collar Cold War Warsaw Pact Eastern Bloc Kit Liner Drawstring Button Detachable Quilted Liner Heavy Duty & Durable Embossed Top Button Classic Olive Green