Tall height, oil and acid resistant Oarprene™ compound upper with nylon locking snow collar to protect from the elements. Steel Safety Toe and Plate.  Fully moulded Polar Rubber™ outsole for durability and maximized grip and longevity of boot at cold temperatures . Removable Comfort-Fit multi-layer inner boot system featuring Thermaplush™ soft, next-to-foot wicking layer for warmth. Polar Rated for the Coldest Moments on Earth.