The Clarks Artisan Hencroft Step Waterproof Leather Chelsea Booties are made from premium waterproof leather with a waterproof gusset. They feature a zip-up fastening, elasticated panel for ease of wear, and a back pull tab. The boots have a synthetic lining, foil footbed barrier for warmth, and a synthetic outsole. Measurements include a 4.75" boot shaft height, 9" boot shaft circumference, 1" platform height, and 2" heel height.