Thoughtfully designed to look stylishly good for girls while pleasing comfort-concerned parents The North Face Bella Alta Snow Boot is a waterproof design with plenty of synthetic 200-g. Heatshield Optimal Technology insulation to keep toes toasty all the way down to -25F (-32C). The combination of waterproof synthetic Nubuck leather double-adhesive latex seam-sealing and a waterproof HyVent™ membrane keeps the Bella Alta Snow Boot so weather resistant that the only way feet can get soaked from the outside is by an errant misstep in a calf-deep slush puddle. Beneath the warm fleece lining is an AgION™ antimicrobial interior and an ergonomic X-2™ footbed. A TNF Winter Grip™ rubber outsole minimizes the chances of too many slips between the ski school bus and lodge or the family cabin and ice fishing yurt.