Polyester knit CSA Z96-15 Class 3 Level 2 when worn with CSA Class 2 Level 2 top featuring reflective arm bands ANSI/ISEA 107-15 Class E Supplemental Type StarTech™ reflective tape Mesh ventilation panels on upper legs Brass zipper fly access 2-way 28" leg zippers for ventilation and easy boot access 5 storage pockets: 2 side, 2 back, 1 tool Elastic waist with drawstring Sizes: XS-4XL Hi-Viz Yellow/Green, Orange, Blue