Viking Safety Cotton Lined Hi-Vis Long Sleeve Shirt 100% Polyester Imported 2" Vi-brance reflective material in 4" contrasting tape meets WCB/Worksafe/DOT configuration Dual layers of cotton back and outer polyester layer provides superior comfort and breathability while decreasing irritation Velcro-sealed pocket on the left chest UPF rating of 50+ blocks 98% of UV radiation Fully compliant with CSA Z96-15 Class 2, Level 2, ANSI/ISEA 107-2015 Type R, Class 3, not FR