Bogs Women's Crandall Tall Snow Boot 100% Textile Imported Rubber sole Shaft measures approximately 13.5" from arch Platform measures approximately .05 inches Boot opening measures approximately 14" around Waterproof Constructed with 3mm Neo-Tech waterproof insulation Comfort rated to -13F/-25C Bogs Max-Wick moves sweat away from your foot to keep you dry Neo-Tech:- Four-way stretch inner bootie provides insulation and comfort. Rebound technology in outsole provides lasting comfort