hi vis
Remarks about 'elf 'n' safety and troops/airmen wearing them always make me smile. As a brand new Apprentice in 1970 the first 6 in my room were designated outriders and issued with hi vis vests and lanterns (white marching at front, red for the rear) for our6 abreast march to workshops every day. That was 4 years before the Health and Safety at Work. etc Act 1974. 2 years I wore that vest. No respite when Senior Entry but was first everywhere.