Kahtoola has been building traction devices in Flagstaff, Arizona since 1999, and MICROspikes are the model most winter walkers end up with. Twelve stainless steel spikes per foot hang from welded chains under a thick elastomer harness that stretches over a boot in a few seconds. Spike length is under half an inch, enough to bite polished ice without turning every step into stilts. A pair costs around seventy five dollars and carries a two year warranty, rare in this category.
The reward for the price is durability: chains and spikes survive stretches of bare asphalt that shred lighter devices. Downsides are honest. The spikes click loudly, they are unwelcome on tile and hardwood, and on packed powder they collect snow underfoot. For a flat commute over slush, a coil model is lighter and cheaper. For hills, steps and glare ice, this is the reference point.
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