British army issue Mark 1 Fragmentation vest also known as the 1979 Pattern Flak Jacket.
Used in Northern Ireland to protect the wearer from explosive shrapnel. It also gives good protection against blunt force impacts and bladed weaponry.
The design was based on the US Vietnam issue M69 Flak jacket.
Insides are made of Ballistic Nylon.
![](https://i.ytimg.com/vi/Wbe96kce6jI/maxresdefault.jpg)