Mile after mile, NANOspikes® footwear traction provides unrivaled comfort, grip and performance when running on icy streets, roads, and sidewalks. Ten extremely wear-resistant tungsten carbide spikes per foot bite into frozen surfaces and highly durable dual-compound TPU traction plates feature specialized inserts that disburse impact forces. NANOspikes® also allow users to safely transition between dry and slippery pavement without affecting the natural running motion, providing the high performance road runners demand so they can train and stay outside all year round.