Over-the-sock boot features 8 mm neoprene bootie with fleece lining wrapped in layers of soft rubber. Outsole features Vibram’s all-new Arctic Grip A.T. with XS Trek Evo for advanced traction on all terrains including wet ice, snow, mixed/loose surfaces and hard pack. bioDEWIX™ anti-microbial footbed insert topcover with NZYM™ for odor control and moisture management. Extended rubber coverage and lightweight EVA midsole for all-day comfort and support. Comfort rated from -60° to 30°F. 100% waterproof. Heights range from 11"-12", depending on size. Women’s sizes.