Ariat FR M4 Relaxed Boot Cut Work Pants Mens 40x30 Khaki Flame Resistant 105037 Ariat FR M4 Relaxed Boot Cut Work Pants in a versatile khaki tan. These flame-resistant trousers are constructed from Westex UltraSoft fabric, offering a blend of 88% cotton and 12% nylon for durability and safety with an ARC rating of 13 ATPV. Designed for the job site, they feature a classic five-pocket styling plus a utility tool pocket on the side, reinforced belt loops, and a comfortable relaxed fit through the seat and thigh. The boot cut leg opening easily fits over work boots, while the heavy-duty construction ensures long-lasting wear in demanding environments. Measurements: • Waist: 20" (40" doubled) • Inseam: 26.5" • Leg Opening: 10" Measurements done by ai please see the pictures for 100% accuracy.