This is a 1:6 Scale Veegostore British 37 pattern SAS Trooper Sleeveless Leather Jerkin, it was putting on top of SAS Trooper Uniform.
This is a scale 1:6 outfit that is for toys, not for a real human.
British SAS Trooper, 1 SAS Regt. Germany 1945, Private " Johnny Vicks"