Kahtoola NANO Spikes V2 Footwear Traction System Charcoal/Red Medium. Redesigned from the ground up NANOspikes footwear traction now delivers enhanced comfort improved grip and a better fit on a wider variety of modern running footwear. So you have the freedom to keep moving confidently on icy streets and sidewalks all winter long. Specifications for Kahtoola NANO Spikes V2 Footwear Traction System: Manufacturer: Kahtoola Activity: Snow Sports Fabric/Material: Carbide Features of Kahtoola NANO Spikes V2 Footwear Traction System Ten concave tungsten carbide spikes All-new center plate ridges and directional lug design Integrated toe bail for added security Enhanced elastomer harness geometry Low-profile rivet connections Package Contents: Kahtoola NANO Spikes V2 Footwear Traction System Tote Sack Kahtoola KT05108: NANO Spikes V2 Footwear Traction System Charcoal/Red Medium