When bitter cold meets your work day, Zero Zone by Walls has your back. Cold and wet? Must be time for work. Tough, water-repellent Duck exterior with an insulated lining lets you work in the worst conditions. Walls Muscle Back technology gives you full range of motion so you can make the most out of every move. Concealed front zipper covered by a storm flap, ankle to thigh leg zippers covered by a protective storm flap, hidden storm cuffs using comfort rib-knit, elastic inserts at back waist, adjustable snaps at leg opening, durable trim scuff guard at back leg hems, double knee patches with an additional waterproof barrier for more protection and strength, zippered chest pockets, front swing pockets with additional pass through, back patch pockets, left pocket has a concealed zipper for additional security, utility pocket on right leg, twisted hammer loop on left side. Material: Cotton.