Who is This Product Best Suited For? The Syzmic RangeMens Hi Vis Spliced Shirt ZW138 is perfect for professionals in industries where fire, arc flash, or visibility risks are part of the job—such as electricians, petrochemical workers, and construction professionals. Available in sizes XXS to 5XL and 7XL, this shirt is designed to protect workers of all sizes with comfort, functionality, and peace of mind.