Premium ankle lace-up boot skilfully crafted using only the best materials.3.0mm Pampas leather upper with a Sympatex 100% waterproof membrane, windproof and highly breathable. Additional arch support, maximum stability, and rigid flex. The McKenzie is non-randed and has Norwegian Welted Stitching combined with an ultra-rugged and aggressive Andrew Magma Spiked full rubber sole construction, for impressive durability, designed to withstand the chemicals and acids found in animal urine.Triple spiked in the arch area of the boot, which gives great grip, exceptional wear resistance, and traction. The spikes are carbon steel and removeable. A spike & plug kit comes with every pair of McKenzie boots.