Safety garments are composed of multiple materials, each selected on the basis of purpose they are meant to serve. Among these are Nomex, which is frequently used where flame resistant clothing is required, Kevlar for cut and heat resistant apparel and lightweight breathable fabrics to provide comfort. Waterproof and chemical resistant clothing will be needed for the petrochemical and firefighting industries, to name a few. Appropriate knowledge of these materials also assists clients in making equipment purchases relevant to their safety risks and operational profile.