Kahtoola NanoSpikes

The Kahtoola NanoSpikes have been designed specifically for use on hard, slippery surfaces. Ten ultra-tough tungsten-carbide spikes underfoot shrug off high-mileage adventures on abrasive surfaces like asphalt and concrete, while a low profile design means you won’t have to adjust your stride while running or walking. For increased comfort, the spikes are integrated into flexible plates that disperse impact forces on the foot, so you can stay out longer and go farther.

Features (new version - charcoal/red):
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
Includes tote sack

Features (old version - black & red):
10 tungsten carbide spikes
Flexible plates disperse impact forces on the foot
Ergonomically shaped harness with reinforced eyelets
Integrated toe bail for added security
Raised heel tab for easy on/off
Includes tote sack

Ten Tungsten Carbide Spikes: Strategically placed, tungsten-carbide spikes provide a stable platform, resist wear on hard surfaces and are integrated into flexible plates that disperse impact forces on the foot.
Ergonomically Shaped Thermoplastic Elastomer (TPE) Harness: Features reinforced eyelets for increased durability, is ergonomically shaped to allow for a very low-profile fit and retains its elasticity down to -22°F (-30°C).
Toe Bail: Keeps the toe from pushing through the front of the harness for added security while descending.
Raised Heel Tab: Provides a secure grip point on the harness for easy on and off in frozen winter conditions with cold or gloved hands.

Specifications:
Weight (pair): 210g size medium
Dimensions: 15 x 10 x 6 cm 

Sizing (EUR):
X-Small: 36-38
Small: 38-40
Medium: 40-43
Large: 43-45
X-Large: 45-48

Wash with lukewarm water and air-dry (do NOT dry with heat). Ensure the product is clean and dry before storage. Inspect device before each use and remove it from footwear between uses.