The Wild Rock GTX (R) is an extremely well-insulated boot that will take the wearer comfortably down to minus 20 degrees. This is an updated version of our Legend boot with a mid-height profile and many of the innovative Crispi(R) (R) technologies. Designed for all types of rugged hunting, trekking and winter activities. Use the range as a guide for temperature, however, this will vary depending on the user. Designed in Italy and tested in the Alps and Rocky Mountains.Features:Gore-Tex Insulated Comfort LiningVibram Lugged Sole with Super-Grip MixtureA.B.S.S. (Ankle Bone Support Structure) a Crispi ExclusiveBoard Lasting Mechanical ConstructionLock Lacing AnkleTongue Lace LockSizing Chart Conversion