Blundstone Winter Thermal W Original High TopWaterproof. Winterproof. Our always sells out Thermal series now encompasses new Original Series Womens Hi Top boot. Shown here, the #2274 in basic black. Basically, black goes with everything, while your March mood may be dark, at least your feet will be dry. Thermal Hi Tops, already slightly higher against the elements, add the heat retaining qualities of pure wool footbeds and Thinsulate lining. This boot makes everyday sense. 100% waterproof, even