Proven protection for hazardous environments, the flame-resistant M5 Straight Leg delivers a closer fit through the seat and thigh with a classic straight leg. Lightweight DuraLight fabric helps keep you cool, comfortable, and moving through hot, demanding work. FR M5 Straight DuraLight Stretch Coltrane Straight Leg Jean Men's Flame-Resistant M5 Straight DuraLight Stretch Coltrane Leg Jeans in Billings, Size: 30 X by Ariat