We have free shipping at both ways and greatest sales for the Khombu Tusk Black Feel the warmth and keep out the cold in the stylish Tusk boot!; Waterproof suede and nylon uppers. Thermolite footbed cushions and provides warmth every step of the way. Ortholite moisture-wicking and anti-bacterial foam keeps odors away. Plush faux fur lining. Dual-density outsole with rubber inserts for improved traction and durability.