When worn with other gear, such as Class 2/3 reflective vests, shirts or jackets, it meets Class 3 standards Made of polyester knit with mesh ventilation panels on upper legs and elastic waist with drawstring for all day comfort Features StarTech® silver reflective tape which provides excellent visibility, two-way 28 in leg zippers for ventilation and easy boot access, and 5 storage pockets These pants are available in fluorescent yellow/green offering supreme visibility and safety on the job Comes in a wide range of sizes from XS to 4XL and can be worn by men & women.