High Visibility Day/Night – Large Size – up to approximately 140cm chest (L – XXXL adult in-store size). A vest size will always need to be larger than the clothing size you regularly wear so it can fit comfortably over clothing. Complying with Australian Standards for High Visibility Garments AS NZS 4602.1(including Nov. 2016 Amendment) as well as European Standards. The fluorescent yellow-green colour of our vests meets the required surface area and the highly designated chromaticity level for day time use, as well as more reflective material than the minimum for increased low-light and night time safety.