The Women's Neo Arctic boots feature 8 millimeters of ultra-warm, waterproof neoprene to combat the world's coldest extremes. With 16 Inches of 100% waterproof vulcanized rubber construction feet are kept bone dry. Shock-absorbing EVA midsole adds comfort, increased stability and support. OmniTrax® Interchangeable Sole System allows for traction on the fly; easily change soles as conditions or terrains demand.