A Note on Proper Fit:
It is very important that your socks fit comfortably within the interior space of your new or existing insulated or non-insulated boots. Make sure to provide enough room for all your toes to be in their natural position and allow for toe motion. When purchasing new boots, fit the sock system to the boots.
NOTE: The bulkier knit construction of the Extreme Weather system may require a wider or larger boot size than you would normally wear.