I fell twice this winter while walking my dog due to ice. I bought these and was very impressed. I weigh around 230 pounds so wondered how well these would work between walking on the ice and sometimes pavement. I was afraid they would get ruined when I stepped on the pavement where some of the ice had melted but they were just fine and more importantly they kept me from falling! They wrapped easily around my boots and although at first they felt awkward it didn't take long to get used to them. I highly recommend them.