I can't use this item.  there isn't enough rigidity to the forefoot portion of the sock to create an ample stretch to the arch or calf.  All of the stretch is happening at my toe joints which is not solving the problem and actually aggravating my bunion issue.  Perhaps this would work for someone else...at some point, I may try inserting half of an old Superfoot or other rigid footbed into the sock and trying this again.