reflective safety jackets conforming to specification no is 15809 2017 or latest 1 only isi marked item is acceptable 2 size as per requir ement 3 design as per annexure a 4 vertical and horizontal retro reflective strips of 50 mm width that can sustain minimum 50 wash at jacket all aroun d on front and back as per attached drawing annexure a with printed reflective logo of western railway of size at least 6 inch diameter or 20 cm x 15 c m on back side on the jacket and two labels of size 5cm x