Inov-8 Arctic Talon 275 Trail Running Shoe 100% Textile/Synthetic Imported Synthetic sole For racing over extreme off-road terrain, excelling on ice and frozen ground Phenomenal grip: using more tungsten carbide spikes than ever before, maximum grip is guaranteed. Spikes carefully positioned to ensure grip when racing at speed, no matter what part of the foot strikes the ground Precision fit Ready for winter racing: spikes, coupled with overall shoe weight of 275g, gives runner the confidence to race at speed over all frozen terrain Run with protection and comfort: protect-shank aligns with spikes underneath to protect foot's metatarsals, while still allowing for a flexible ride