NANOspikes® footwear traction provides unrivaled performance, comfort and durability on icy and snow-packed city streets, enabling you to confidently transition between dry and slippery pavement without affecting your natural running motion. Between outings, easily pack them away in the included tote sack. Comparison chart Flat Rate Shipping $6.95 / Free Shipping with orders over $75.00 (U.S. only)  International taxes and duties not included.