This is the British military's 1984 Pattern (sometimes referred to as 85 Pattern) Combat Smock. This jacket features a zippered front with buttoned flap, four large bellowed front pockets, hook and pile tape (Velcro) cuffs, shoulder length twill lining, a small pocket on the left sleeve, and a shell dressing (1st aid pack) pouch on the right sleeve.
DPM (disruptive pattern material) was the United Kingdom's primary camouflage pattern from 1966 to the 2000's. The British military used many contractors in the production of their uniforms and therefore the colors will vary slightly from these photographs.
These are used, vintage military uniform pieces. Expect wear, to include frays and various markings such as servicemembers names and numbers written on them. All of this adds to the character and history of used military surplus material.