The Classic Adult Safety Vest is a high quality vest made to the specification of the NZ (AS/NZS 4602.1) and TTMC-W standards and come without pockets. It is however only the orange and yellow coloured vests that meets the colour requirements of the standard which means these vests need to worn around hazardous construction environments. Yellow and orange vests get overdone and for most situations and environments are not necessary. Unless it is written into your H&S policy another coloured vest is a smart way for distinguishing different roles and people. eg CIMS or emergency response teams are required different coloured vests to easily identify which unit they are apart of. Your company, school or church can do exactly the same. Its a smart way of identifying different roles eg Fire Wardens wear red, Visitors wear Pink, Security wears Black and the gorgeous wear Purple.