When extreme conditions demand maximum protection, pull on the Sorel Alpha Pac Snow Boot for Women, Sorel Rated to -60°F. Built with innovative Sorel construction, the Alpha Pac has an EVA midsole and close fitting design for better performance and functionality for winter activities. A Polar Lite shell and recycled felt liner provide the comfort, warmth, and protection you have come to expect in an insulated, water resistant snow boot from Sorel.