Get ready to explore the city during those chilly weather days in ultimate style and comfort wearing The North Face® ThermoBall™ Progressive Zip II Waterproof Boots. These lightweight, waterproof and low-cut boots features THERMOBALL™ insulation and recycled polyethylene terephthalateP (PET) ripstop uppers. To help keep feet dry, these boots use DryVent™ waterproof membrane keeps out the wet elements while still providing a breathable foot environment.