Flame Resistant Overalls for Men: The best-fitting work bibs you've ever worn, in a heavy-duty performance fabric to keep you protected on the job site. It's loaded with utility features that make tough work easier, like reinforced thighs and pockets Fire Protection: These bibs for men are engineered for demanding work environments and follow NFPA 70E, NFPA 2112, and Cat 2 requirements for protection from possible exposure to electrical hazards, short-duration thermal exposures, and flash fire hazards All-Day Performance: Thoughtfully designed with 12.5 oz canvas and 100% Cotton, these work coveralls for men are made to last and provide performance while working. Designed to be worn comfortably over jeans Functional Features: These men's bibs are designed for functionality, including adjustable elastic suspenders with heavy-duty buckle closure, hip-to-thigh leg zipper with snap-secured storm flap, multi-functional bib pocket, and side utility pockets Wear Over Your Clothing: Designed to be worn comfortably over jeans, these flame-resistant pants for men may require sizing down if you plan to layer over knit pants for a more tailored fit