Caterpillar Men's Flame Resistant Cargo Pant 88% Cotton, 12% Nylon Imported Machine Wash FR Certified to UL NFPA 2112, NFPA 70E, CAT 2, ATPV 9.5 9 oz. FR 88% cotton/12% nylon Classic fit 20" leg opening fits over boot Back bellowed pockets, cargo pockets with pen and cell phone pocket, ruler pocket at back thigh Machine wash Imported