Confident, natural traction on icy streets, trails, and sidewalks — the Kahtoola NANOspikes deliver low-profile winter traction that keeps you close to the ground for better stability and a natural stride. Ten concave tungsten carbide spikes per foot bite into ice with precision, while resisting wear from abrasive pavement surfaces up to 100 times better than steel. Centre plate ridges and directional lugs add grip on uneven ice and packed snow, and the enhanced thermoplastic elastomer harness fits modern running footwear precisely, retaining elasticity down to -30°C. Includes a tote sack for easy carrying and storage. Nanospikes Footwear Traction Features Ten concave tungsten carbide spikes per foot for precise ice grip and exceptional abrasion resistance Tungsten carbide is up to 100 times more abrasion resistant than steel for long-lasting durability Centre plate ridges for enhanced stability on uneven ice and snow Directional lugs improve traction on packed snow during ascents and descents Integrated toe bail secures footwear on descents and reduces toe pressure points Enhanced TPE harness geometry for a precise, comfortable fit on modern running footwear Patented reinforced eyelets for increased harness durability Retains elasticity down to -22°F (-30°C) for reliable performance in extreme cold Low-profile design for a natural, ground-close stride Includes Urban Explorer tote sack for convenient carry and storage TECH SPECS Weight: 182g(XS), 193g(S), 210g(M), 222g(L), 238g(XL) Packed size: 15 x 10 x 6cm Spikes: 5.3mm (length), 10 spikes per foot Materials: Tungsten carbide anchored in aluminum and thermoplastic polyurethane (TPU) lugs