Khombu Womens Lester Quilted Waterproof Short Duck Bootie Synthetic Imported Rubber sole Short Duck Boot Genuine Suede Upper & Waterproof Shell Bottom Insulated Faux Fur Lining, for extra warmth Thermolite Insulated Insole, to protect from cold feet Temperature Rated: Tested to withstand temperatures of up to -20F (20 degrees below zero)