The C-Safe HV12 series of waistcoat Hi-Viz size is XL which is use for worn over other clothing and also available in orange.
Hi Vis Yellow Safety Vest - Reflective Work Vests
Safety Vests, Personal Protective Equipment (PPE), Facility Maintenance & Safety, Business, Office & Industrial - PicClick UK
2XL/3XL) Class 2 High Visibility Yellow Safety Work Vests
SureWerx™ 6931-L/XL Pioneer Hi-Viz Safety Tear-Away Vest
HI-VIZ VEST £2.10 - PicClick UK
US373 - Aurora Hi-Vis Contrast Executive Vest S/S
Orbit International PLC
Milwaukee 48-73-5023 High Visibility Yellow Safety Vest - XXL/XXXL
Social Distance Punch You 2 metres Hi Vis Vest