This revolutionary new design combines the superior quality of Cotton Comfort fabric with ventilating mesh panel inserts. Designed to generate airflow this garment will keep the wearer cool in high temperature working environments. Features: Breathable fabric to draw moisture away from the body keeping the wearer cool, dry and comfortable Moisture-wicking fabric helps to keep the body cool and dry Reflective tape for increased visibility 35+ UPF rated fabric to block 97% of UV rays Underarm cool flow mesh panel for ventilation Crew neck Designed with a comfortable fit Certified to EN ISO 20471 after 50x washes Complies with RIS 3279-TOM for the rail industry (orange only) CE certified Shell Fabric: 55% Cotton, 45% Polyester, Knit 175g Contrast Fabric: 100% Polyester Mesh 125g Do not dry clean. Standards: RIS-3279-TOM ISSUE 1 (ORANGE ONLY) EN ISO 20471 Class 2