Material ? Sewn with aramid inherently FR thread, these navy cargo work pants are made from 88% premium cotton material blended with 12% high-tenacity nylon, providing long-lasting value and breathability Design ? The durable fabric is double-stitched with StarTech? FR reflective tape to enhance visibility in low-light conditions and are designed with flame resistance guaranteed for the life of the garment Features ? Constructed with a FR brass zipper for adjustability, the FR-Tech? workwear has 2 front, 2 back, and 2 cargo utility pockets with flaps. Additionally, all components and material meet CGSB 155.20-2017 and NFPA 2112-2018 certified to UL Certification ? With an ARC 2 rating, an ATPV of 10 cal/cm? and thermal protective performance value of 9 cal/cm?, these pants meet CSA Z96-15 Class 3 Level 2 and Class 3 Level FR when worn with Class 2 Level 2 and Class 2 Level FR top