Those windproof camouflaged smocks were on regular issue to Cadet Forces for arduous training and because they were quite loose fitting, used by snipers too. There was a loose earlier non-camouflaged type too and before that another lightweight camouflaged pattern - in the old wartime camo / dennison type pattern camouflage. They all had hoods with drawstrings and a couple of drawstrings around the waist and botttom too. Those clasp knives are still in issue - as are the little sheaths. But most blokes just use a leatherman now. You can do a LOT more damage and illegal stripping/fixing/bodging/cutting/hacking/sawing/screwdrivering/allen-key unscrewing etc etc with a leatherman.