i use just the toe ones and they keep my feet warm here in pa.
i agree,i dont walk with them in, i get to where i sit,then put them in my boots under my toes..
my feet never get cold,its my toes
so, toe paks work fine and are cheaper than ones you suggest..
paying 17 dollars plus shipping is too much, i get the toe ones at wal-mart on sale for 1 dollar each,i buy about 20 each season.