As roomy as they are tough, the rugged Monte Cargo snow pants from The North Face deliver waterproof, breathable coverage. Quiet and abrasion-resistant HyVent� coated nylon is completely waterproof, windproof and breathable; fully sealed seams prevent moisture seepage. Performance Thermoliner I polyester lining holds in warmth, wicks moisture and eases layering. Chimney Venting� uses StretchVent� gaiters and inner thigh vents with mesh gussets to control airflow and regulate temperature. 2 zippered front