Kahtoola NANOspikes

Good design does not yield good performance for running. The image on the front of the box shows a running shoe, though buyers should understand the product's limitations. This product is best used for walking in crunchy winter conditions.

I purchased NANOspikes to run/jog on pavement in mixed winter conditions. The clickety-clack produced every step was bearable, though the performance was not. The two studs at the topmost of each strap-on are ineffective at gripping ice, which means the lift-off portion of the step requires caution.

The remainder of the studs can be effective in some ice conditions; but hard, black ice is not managed by this product. I also tested this product on flat metal and flat concrete at freezing temps without ice, and performance is worse than a rubber sole. 

In summary, this product is effective for some winter conditions or for winter walking, but in my experience it falls short for urban winter jogging. NANOspikes are most effective for walking over distances with a small amount of evenly distributed crunchy ice. 

When encountering heavier snow/ice, though, MICROspikes would be more appropriate; MICROspikes is a fantastic product for various winter conditions, though the aggressive spike is a bit much for urban settings. 

Nanospikes are a super versatile traction device that work on snow, ice, rocks, and pavement.

I purchased these for hiking in Colorado in the winter. I wanted a traction device that would allow me to go back and forth between snow/ice and rocks/dirt. Nanospikes fit the bill perfectly. I never slip, even on solid ice (though I do make sure my foot is firmly planted with each step, to set the spikes.)

My traction on rocks and pavement is unaffected, and I also appreciate that these tiny tungsten carbide studs can't bend or break on rocks like every other traction device out there. In fact, these studs break the rocks instead.

Another benefit is that you can run with these on, and I've done so very successfully. Last of all, Nanospikes stay firmly wrapped around your shoe, and they can't fall off like Yaktrax.

Like them very much. Fit very snug. I can place them in my backpack and don't have to worry about damaging anything. Has kept me safe on ice and snow. Thanks again.

Love em.

I've worn these both hiking and running and they worked great. They are comfortable and the spikes are hardly noticeable. The only downside is they shift to the side, so be prepared to adjust them occasionally.