For serious traction, cleats are the way to go. However, until very recently I never found any that would stay in place if the walking got serious. Now, I believe I have. They're Kahtoola K-10 Hiking Crampons, and I got mine from Kenetrek Boots (kenetrek.com/collections/boot-accessories). They're light, simple, do not slip or slide on the boot, and will probably last a lot longer than you will. Each crampon has 10 ¾-inch steel spikes, and these suckers are sharp. When you step, you hear a crunch, and look down, and there's splintered ice all over the place. There's one size, and it will fit hiking boots or Kenetrek Pac Boots. I don't think they'll fit on insulated rubber boots. The price is $99.95.