What if we told you we combined two winter faves (our Adirondack and Butte Boots) into one? This year, we're celebrating 25 years of our Adirondack with the ultimate winter hero: Adirondack Boot XXV. It features fully waterproof genuine leather and suede, Xerogel insulation that keeps you warm in temps as low as -32ºC, and a higher tongue height for even more protection. Infusing UGG® heritage with modern materials, this new edition of the Adirondack Boot still delivers the same Feel of UGG® you already know and love. Wear it on your outdoor adventures or take it to the city – this boot is ready for wherever winter takes you. Waterproof Waterproof membrane bootie construction Waterproof leather Waterproof suede Gusset Leather upper Cuffable shaft, Front pull tab, Rear pull tab Laces made from 100% recycled polyester fibers 17mm curly UGGplush™ 80% upcycled wool, 20% lyocell lining or 17mm curly UGGplush™ 60% upcycled wool, 40% lyocell insole 17mm UGGplush™ 60% upcycled wool, 40% TENCEL™ Lyocell sockliner Poured PU footbed incorporates at least 50% bio-based content Sugarcane EVA midsole Vibram® outsole with ICETREK rubber compound 3M™ Xerogel Insulation, DryTech Technology Cold-Weather rated to -32°C Vibram® Logo on outsole sidewall, The UGG® Logo on tongue Additional set of laces included RN 88276