Wrangler® FRAC9BF Boot Cut Jeans are designed to self-extinguish to effectively prevent or greatly reduce the severity of burn injuries. Wrangler® FR products were created to meet the rigorous requirements of the major protection agencies 69% cotton/30% modacrylic/1% spandex. 12.5 oz. denim material Authentic five pocket styling Two patch hip pockets with embroidery Mid rise, boot cut style NFPA 70E CAT 2 compliant, arc rating: 15.0 calories/cm2