My husband is a trucker and happened to be in Oklahoma during this last hammering of snow.  I gave these to him last time he was home and today was the first time he used them.  He called me and told me how "GREAT" they are.  He said when others were struggling to keep from slipping on the ice, he walked on as if walking on clear pavement!  The last ice storm he was in he fell and hurt himself, so I'm glad he has these now. These aren't the heaviest style made by this company, but they work for him!