The Adirondack II style from UGG Australia blends style and performance. This practical pair have been crafted from premium materials and are armed with cold-weather technology. The collar can be worn folded down to reveal a lamb fur trim or can be folded up for a longer silhouette. The waterproof leather, insulating UGGpure™ inner, breathable eVent® membrane, and grip-enhancing Vibram® sole on this comfort-boasting boot stand up to temperatures as low as -20 °C.upper: lamb leatherlining: lamb fursole: leather insole, rubber soleround toelace-upDesigner colour name: Otter