Also Lee Valley has something called “Icers” that are very similar. I just ordered some extras for my grippers that I use for clients on Canyon walks.
Which got me thinking out side the box. Though I have never done it . What about using Yak Tracks or the Icers .
http://www.leevalley.com/en/garden/page.aspx?p=40911&cat=2,51676,40911