Caterpillar Men's Flame Resistant Twill Pant 88% Cotton/12% Nylon Imported Machine Wash Cell phone pocket on right leg with hook and loop closure and pen pocket Zip fly with anti-static shank closure Back bellowed pockets with hook and loop closure on right and logo label Cargo pocket on left thigh with hook and loop flap closure with pen pocket and bellowed cell phone pocket on top Knee darts for articulation