Adirondack boot iii is our all time best selling temperature rated boot. It features 200G of insulation, has dry tech waterproof bootie construction and is weather rated to -32 degrees. The insole is removable and replaceable. The outsole is molded spider rubber for maximum stability and support. Cuff the shaft or lace it all the way up. The midsole is dual-density eva for added comfort. Leather uppers are rich and premium. Lining and insole are 17mm uggpure sheep wool that keep feet dry and cozy. enerG Comfort System footbed