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WALK • RUN • TRAINKahtoola NANOspikes®, featured in Outside Magazine’s “2019 Winter Buyer’s Guide,” are designed for use on icy and snow-packed roads, streets, and urban trails. Ideal for transitioning on and off dry pavement, tungsten carbide spikes allow you to run or walk naturally in mixed winter conditions without affecting foot strike, gait and/or stride. Each pair of NANOspikes® includes a 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.