Olang Zaide Exterior materials in hydrosuede and full-grain leather Original shearling lining ALASKA outsole with OC System® studs Removable ISOWARM insole made of 90% wool Sturdy metal eyelet laces and sturdy zipper located inside the boot Waterproof BREATHTEX membrane Comfort zone down to -30°C OLANG Zaide Women's Antracite 816 Winter Boot