Our Class 1 ANSI/ISEA 107 Hi-Vis Yellow Rain Pants are made from 100% polyester yard. It's a durable, hard wearing fabric for the toughest conditions. The fabric is lightweight and has superb abrasion and tear resistance. It's has a PVC coating inside which makes the fabric waterproof. It also has a water and stain repellent coating on the outside which helps keep the garment clean. Pair with rain coat: UH440Y-P-C35